Beli Sumber Daya Inverter Untuk Mesin Las Orbital, Mesin Las + Pendingin Air, Mesin Las Orbital - bekas (101.059)

Kondisi: bekas, Tahun pembuatan: 2012, Fungsionalitas: berfungsi sepenuhnya, nomor mesin/kendaraan: 82397, jenis arus masuk: tiga fasa, arus pengelasan (maks.): 420 A, Perlengkapan: Pelat tipe tersedia, MERKLE Insquare W 421 AC/DC TIG welding unit with water cooling Manufacturer: MERKLE Model: Insquare W 421 AC/DC Year of manufacture: 2012 Serial No.: 82397 Description For sale is a high-performance AC/DC TIG welding unit from MERKLE with water cooling. This machine is suitable for professional welding applications on steel, stainless steel, aluminum, and other non-ferrous metals. Thanks to AC/DC technology, the system supports both direct current (DC) and alternating current (AC) welding, covering a broad range of applications. With a welding output of up to 420 A, the unit is ideal for industrial use in metal construction, container fabrication, plant engineering, and pipeline construction. The integrated water cooling ensures continuous and reliable operation even at high welding currents. Technical Data Brand: MERKLE Type: Insquare W 421 AC/DC Year of manufacture: 2012 Welding current range: 5 – 420 A AC frequency: 50 – 200 Hz Open-circuit voltage: 80 V Power supply: 400 / 415 V, 50 / 60 Hz, 3-phase Duty cycle at 40°C: 420 A at 40% 360 A at 60% 310 A at 100% Protection class: IP23 Water cooling Rjdpfxjzamffs Amusu Standard: EN 60974-1 Scope of delivery MERKLE Insquare W 421 AC/DC Water cooling unit TIG torch Ground cable Foot pedal All information subject to change without notice.

Kondisi: hampir baru (bekas), Tahun pembuatan: 2006, Fungsionalitas: berfungsi sepenuhnya, nehnleistung-50-ed-20kva Rsdpfx Aezamh Hjmuju

Kondisi: baru, Tahun pembuatan: 2024, en-1 Redpfxjd Hkqhs Amuou

Kondisi: baru, Tahun pembuatan: 2024, Fungsionalitas: berfungsi sepenuhnya, The universal pneumatic table PT-2800 features an adjustable work surface, pneumatic clamping for support elements (blocks or beams), and a pneumatic lift that brings the pallet towards the operator. It is an adjustable, semi-automatic nailing table for pallets of various sizes. Its ergonomic design allows for quick and easy adjustment of the pallet template size. Lengths can vary from 900 to 2800 mm, and the table supports widths up to a maximum of 1500 mm. Only one operator is required to produce 180–210 pallets during a single 8-hour work shift. The operator uses multiple nail guns for different nail sizes. Each nail gun is conveniently suspended on an overhead roller track, allowing the operator to move them freely along the assembly rail system. The table’s construction ensures both efficient production and operator comfort. Technical specifications: Weight: 530 kg Operating pressure: up to 8 bar Material: structural steel Pallet dimensions: Length: 900–2800 mm Width: up to 1500 mm External dimensions: Worktop width: 3210 mm Table width including rail mounting system for balancers: 4082 mm Worktop height: 1829 mm Rjdeqwnv Njpfx Amusu Table height including rail mounting system for balancers: 2697 mm Advantages: Easy operation – one operator can build 180–210 pallets in 8 hours Compact design – total footprint of 4.94 m² Universal adjustable work surface allows for the production of: - Block pallets (including EUR pallets) with up to 15 blocks - Pallets with 2, 3, 4, or 5 stringers Efficiency – quickly switch to pallets of any size Pneumatic clamp – easily centers blocks Pneumatic lift – raises the pallet to minimize operator lifting Overhead roller track – nail guns can move freely during operation Lower template – template for assembling pallet feet Adjustable steel nailing plates – galvanized and hardened steel plates for nailing Unique features: - Diagonal table adjustment reduces operator workload by 50% - Capability to assemble CP1, CP2, CP3, CP4, CP5 pallets - Only 2 Allen keys required to set up the table

Kondisi: baru, Tahun pembuatan: 2024, lebar total: 13.910 mm, tinggi total: 25.810 mm, panjang total: 31.220 mm, sambungan udara terkompresi: 8 batang, masa garansi: 1 bulan, berat keseluruhan: 440 kg, lebar kerja: 1.900 mm, tinggi kerja: 1.300 mm, en-universal-pneumatic-table-pt-1900-translation-en Redpfeqcvvgox Amusu

Kondisi: baik (bekas), 392 PENGANGKAT ADONAN HAS (Bekas) untuk Diosna Mixer. DIMENSI EKSTERNAL (dalam cm): - tinggi: 250, Rsdey Uv A Depfx Amuju - lebar: 125, - panjang: 210. Perangkat siap untuk dilihat di gudang kami (36-068 Bachórz, Polandia). Opsi berbayar yang tersedia: transportasi / pemasangan / commissioning. Harga yang tertera adalah harga netto. KAMI BISA BERBICARA BAHASA INGGRIS, JERMAN, PERANCIS, RUSIA, UKRAINA. Dalam penawaran kami tersedia oven roti industri, oven troli, oven rak, oven pastry, oven toko, mesin roti, lini roti, lini roti kecil, lini kue, lini croissant, mesin baguette, pengaduk adonan, mixer, mesin rolling, mesin pembuat kue croissant. Lihat semua iklan kami.

Kondisi: baik (bekas), Tahun pembuatan: 2021, Fungsionalitas: berfungsi sepenuhnya, PUR-melting-device-alubags-alucartidges Redpfxjy S Rw Ro Amuou

Kondisi: bekas, Mesin untuk produksi roti kotak dan ciabatta, 5 baris • Pembagi adonan • Stasiun perendaman • Stasiun penaburan biji • Pembagian adonan 5 baris • Pemotong guillotine melintang untuk pemotongan sesuai panjang yang diinginkan Adonan dialirkan ke konveyor atas dalam bentuk pita. Pisau membagi adonan menjadi 5 baris, kemudian mesin guillotine memotong produk sesuai panjang yang diinginkan. Rjdoy Uvx Espfx Amusu Mesin diimpor dari Jerman, dalam kondisi berfungsi. Kami juga menawarkan berbagai pilihan peralatan bekas untuk bakery dan confectionery. Silakan hubungi kami — komunikasi dapat dilakukan dalam bahasa Inggris, Jerman, dan Rusia.

Kondisi: sangat baik (bekas), NOMOR KATALOG 7393 DATA TEKNIS Gergaji melintang: - diameter maksimum pisau 350mm - spindle 30mm - pisau dapat diatur kanan/kiri, atas/bawah - motor 1,5kW Mesin profil: - spindle pen tenon: - diameter spindle 40mm - tinggi kerja spindle 145mm - diameter maksimum cutter 400mm - motor 3,7kW - gerobak samping dapat disetel naik/turun - penahan pada gerobak - meja + rel pembatas sudut dapat diatur 600x400mm - dimensi (P/L/T) 1700x2050x1260mm - berat sekitar 500kg KEUNGGULAN – buatan Jerman Rjdpfxsy Snyio Amuju – kondisi sangat baik – mesin pen tenon bekas Harga netto: 7.900 PLN Harga netto: 1.880 EUR Harga netto dihitung berdasarkan kurs 4,2 PLN/EUR (dengan fluktuasi kurs yang lebih besar, harga dapat berubah)

Kondisi: bekas, Fungsionalitas: berfungsi sepenuhnya, Tahun pembuatan: 1985,

Kondisi: baik (bekas), Forklift battery charger, industrial charger, forklift battery charger, industrial charger, Si rectifier - Manufacturer: Hagen Batterie, charger Belatron type E220 G24/50 B-FB - Input voltage: 220 V 50 Hz - Output: 25.2 V/50 A Rsdpfx Amevmpgneusu - Dimensions: 540/330/H420 mm - Weight: 40 kg

Kondisi: bekas, Unit pendingin, pendingin air sirkulasi, pendingin air, chiller O. Hellwig Tahun pembuatan: sekitar 1995 Rodpepu R Ncefx Amueu Kapasitas pendinginan: sekitar 8 kW Daya nominal unit pendingin: 3 kW Refrigeran: R422D Kapasitas tangki air: sekitar 35 liter Kapasitas aliran pompa sirkulasi: 40 liter/menit Daya pompa: 0,63 kW Koneksi air: 1/2 inci Koneksi listrik: 380 Volt, 50 Hz - Pengaturan suhu melalui potensiometer putar Dimensi (P x L x T): 1100 x 750 x 140 mm Berat: 285 kg

Kondisi: bekas, 12-piece die block for GEWA press brake Press brake tool, lower die Type: 0255/14 Prism size: 16 mm for 90° Prism angle: 88° Die depth: approx. 8 mm Overall height: 120 mm Max. pressing capacity per meter: 100 t/m Die base width: 60 mm Total length: 4175 mm Segment lengths: 4 x 835 mm, 1 x 400 mm, 1 x 200 mm, 1 x 100 mm, 1 x 50 mm, 1 x 40 mm, 1 x 20 mm, 1 x 15 mm, 1 x 10 mm Rodowbvmiepfx Amueu Weight: 110 kg Very good condition

Kondisi: bekas, 1 paket = 720 kg elektroda stick BÖHLER-THYSSEN Elektroda las untuk pengelasan listrik Disimpan kering, dalam kemasan 6 kg Tipe: Phoenix SH Gelb B + Phoenix Spezial Gelb AWS A5.1-91 Nomor Artikel: 18952 Diameter Elektroda: Ø 5 mm Panjang Elektroda: 450 mm DIN: EN 499-E38 2 RB 12 Rodexcnktepfx Amuju - Elektroda stick berbasis rutil. - Pengelasan mudah pada lapisan akar, pengisi, dan penutup - Sifat menanjak yang sangat baik - Cocok untuk pengelasan bersih-X-ray pada konstruksi pipa, ketel & tangki - Dapat digunakan pada plat berlapis pabrikan - Dalam kemasan asli yang belum dibuka, barang stok Berat total: 720 kg

Kondisi: bekas, INDUMASCH SIEGEN Beveling Machine Model V 12 Mach. No.: 50674 Year of manufacture: 1992 Max. material thickness: 40 mm Bevel angle: 45° Working speed: approx. 3 m/min Motor power: 2 kW Power supply: 400 Volt, 50 Hz - Forward / reverse operation - Built-in guide roller for 45° bevel angle - Belt guard missing Dimensions (L x W x H): 650 x 600 x 650 mm Weight: 75 kg Rjdorz Tupjpfx Amueu Good condition

Kondisi: baru, Tahun pembuatan: 2026, Fungsionalitas: berfungsi sepenuhnya, panjang poros: 1.064 mm, tegangan masuk: 230 V, jenis arus masuk: AC (pendingin udara), daya laser: 30 W, jenis pendinginan: udara, lebar total: 800 mm, tinggi total: 2.000 mm, panjang total: 900 mm, berat keseluruhan: 100 kg, masa garansi: 12 bulan, jenis penyesuaian ketinggian: listrik, lebar bukaan pintu: 700 mm, tinggi bukaan pintu: 400 mm, panjang area pemindaian: 150 mm, lebar area pemindaian: 150 mm, arus masuk: 16 A, lebar yang dibutuhkan: 800 mm, panjang gelombang laser: 1.064 nm, tinggi kerja: 900 mm, persyaratan ruang panjang: 900 mm, frekuensi input: 50 Hz, jenis laser: laser serat, Perlengkapan: ekstraksi asap, The universally applicable LAS 28 XL laser marking system from Systemtechnik Hölzer GmbH is suitable for a very wide range of marking applications. With the integrated fiber laser, you can mark almost all materials, such as steel, carbide, aluminum, and plastics. Rsdpfx Asywg Sbomueu Depending on your requirements, the system can be equipped with a 20, 30, or 50 watt fiber laser. For permanent marking, the use of lasers has become indispensable in many industries. The powerful laser software enables you to create text, numbers, 2D codes, QR codes, and logos with just a few clicks and without extensive programming knowledge. The software can automatically increment serial and article numbers after presetting. Furthermore, the software can retrieve data (variable information such as drawing numbers, project names, etc.) from existing tables and automatically transfer them to predefined fields. Use of a handheld scanner is also possible. Standard equipment includes a laptop with mount, running Windows operating system and the laser software. Optionally, the LAS 28 XL laser model can be equipped with a rotary axis (3-jaw chuck) for marking cylindrical parts. Additional options, such as side extensions for marking long components, movable Z-axis, drawer systems, etc., are also available. Made in Germany Fiber laser 30W, 20W, or 50W • Laser class 1 • Wavelength 1064nm • Marking field size 150x150mm (optionally larger) • Marking software EZCAD in German / English • Signal light for indicating operational status • Optional: Rotary axis (3-jaw chuck) • Optional: Digital height measurement system • Optional: Extraction unit (incl. activated carbon filter) • Optional: Extensions for large components (single-sided, double-sided) • Optional: Autofocus system • Pilot laser (simple preview, contour preview) • Focus finder (easy focus adjustment) • Max. component height approx. 300mm • Electrically adjustable Z-axis • Laptop with mount and Windows operating system • Frame made of aluminum profile • Air cooled • Door width approx. 700mm / door opening height: approx. 400mm • Connection 230V • Dimensions: approx. 900 x 800 x 2000 mm (LxWxH) • Weight: approx. 100 kg

Kondisi: bekas, MIG / MAG Pulse Shielded Gas Welding Machine FRONIUS Type TransPulsSynergic - TPS 330 Article No.: 4.075 Serial No. Year of Manufacture: approx. 2000 Output: 330 Amp. = 50% duty cycle 300 Amp. = 60% duty cycle 210 Amp. = 100% duty cycle Adjustment range: stepless Open circuit voltage: approx. 50 Volts Open circuit voltage: approx. 30 Volts Power supply: 400 Volts, 50 Hz, 32 Amp plug - Digital display for voltage and amperage - Pulse welding function - Various welding programs selectable Welding processes: MIG/MAG/TIG (programmed and manual operation) Rjdpfsyv H Elex Amuou 2-stroke, 4-stroke, special 4-stroke, and spot welding - Welding controller with program memory and disk drive for external program storage - Separate 4-roll wire feed unit FRONIUS Type VR 152 with connection hose pack approx. 1.5 meters - 4-meter hose pack BINZEL with central connection - External Fronius water cooling unit Type FK 71 - Welding gas pressure regulator - Machine fitted with 1.2 mm welding wire Required space (L x W x H): 900 x 660 x 1550 mm Weight: approx. 160 kg Good condition – fully functional – ready for demonstration

Kondisi: bekas, Cooling Unit – Water Recooler ARO Type VWK 31/1-S Serial No.: Year of Manufacture: 2007 Cooling Capacity: 3,500 W Ambient Temperature: max. 32°C Refrigerant: R407C Refrigerant Charge: 0.98 kg Max. Operating Pressure Refrigeration Compressor: 29.5 bar Water Tank Capacity: approx. 8 liters Circulation Pump Flow Rate: 27 liters/min (1,620 liters/h) Water Connections: Rectus Type 26 quick-release couplings Power Supply: 230 V, 50 Hz, 2.2 kW - Temperature control via DANFOSS thermostat - Built-in circulation pump (250 W) Required space (L x W x H): 700 x 550 x 520 mm Weight: 75 kg Good condition Rsdpfxjvw A T Ne Amuju

Kondisi: bekas, Spot Welding Machine DALEX Type SF 204 Machine No. AZA/N-32865 Year of manufacture: 2010 Performance at 50% duty cycle: 30 kVA Continuous output: 21.2 kVA Maximum short-circuit power: 108 kVA Maximum welding power: 86.4 kVA Throat depth: 500 mm Arm spacing: 350 - 500 mm Electrode force: 65 - 360 kp (short throat) Electrode force: 25 - 140 kp (long throat) Electrode arm diameter: 45 mm Electrode holder diameter: 25 mm Electrode stroke: 20 mm Welding capacity: Steel sheet: 5 + 5 mm / max. 6 + 6 mm Brass sheet: 2 + 2 mm / max. 3 + 3 mm Aluminium sheet: 1 + 1 mm / max. 1.2 + 1.2 mm Stainless steel (CrNi): 1 + 1 mm Round steel: 12 + 12 mm / 16 + 16 mm Open-circuit voltage: 5.2 Volt Connected load: 55.2 kVA Power supply: 400 Volt, 50 Hz - Dalex RS 15 microprocessor-based multifunction welding controller - Lower electrode arm with swivel mechanism for height adjustment and lateral swiveling - Foot pedal operation - Water-cooled (required cooling water flow: 4 l/min) Space requirements (L x W x H): 1250 x 415 x 1200 mm (Height = 1310 mm with base) Weight: 196 kg Rsdpfeit Rq Hox Amueu Very good condition

Kondisi: bekas, Decoiler and Straightening Line – Decoiler and Straightening Machine Year of manufacture: 1991 Strip width: 50 to 450 mm Sheet thickness (with straightening machine inactive): 6 mm Sheet thickness (with straightening machine active): 2 mm - Very well equipped with excellent feeding aids Total system footprint (L x W): approx. 7,000 x 3,000 mm Total system weight: approx. 11 tons Good condition Straightening Machine HMS Type RS 47-04/1, Machine No. Strip width, nominal: 400 mm Strip width, max. pass-through: max. 455 mm Strip thickness at 400 mm width: max. 1.5 mm (steel) Strip thickness at 400 mm width: max. 2 mm (copper) Speed: max. 40 m/min Number of straightening rollers: 7 pcs. Straightening roller diameter: Ø 40 mm Number of pull rollers: 2 pcs. Pull roller diameter: Ø 80 mm Entry/throughfeed height: 1,500 mm - Straightening rollers hardened, ground and hard-chromed, with central support - Pull rollers hardened, ground and hard-chromed, with hydraulic disengagement - Manual adjustment of straightening rollers - Infeed assistance with hydraulically extendable tongue and hydraulically adjustable deflection roller - Adjustable lateral strip guide - All straightening rollers driven via distribution gearbox with cardan shafts - Both pull rollers driven via gearbox with cardan shafts - Frequency-controlled drive via geared motors - Straightening machine opening stroke 250 mm for cleaning or for processing thicker material, stroke via trapezoidal-thread spindle - Ultrasonic loop control Transport dimensions (L x W x H): 3,600 x 2,200 x 2,200 mm Own weight: approx. 4 tons Decoiler HMS Type BA 1.5-06/80, Machine No. Coil weight: max. 8,000 kg Coil outer diameter: max. 1,600 mm (with loading saddle) Coil outer diameter: max. 2,000 mm (without loading saddle) Coil turntable diameter: Ø 1,700 mm Coil inner diameter, expansion range: 460–520 mm Coil width, nominal: max. 630 mm Spreader jaw width: 750 mm Height of decoiler crown above baseplate: 1,500 mm - Decoiler crown drive via hydraulic motor and gear - Pneumatic overrun brake on decoiler crown TWINFLEX - Hydraulic expansion of decoiler crown, central via wedge slide system - Hydraulic pressure arm with hydraulically driven double pendulum roller - Coil loading saddle with 12 t lifting capacity and 300 mm stroke - Decoiler in floor-running frame with motorized cross-travel drive Transport dimensions (L x W x H): 3,500 x 1,900 x 2,500 mm Own weight: approx. 5 tons Central Hydraulic Power Unit, free-standing Tank capacity: 350 liters Drive power: 18.5 kW - Drive motor with 2 REXROTH pumps (tandem pump) - Oil cooler as air heat exchanger with fan motor Transport dimensions (L x W x H): 1,600 x 850 x 1,450 mm Own weight: approx. 800 kg Electrical Cabinet, free-standing - All cable connections via Harting plug connectors Rodpfoif Sg Sox Amuju Transport dimensions (L x W x H): 2,800 x 500 x 2,250 mm Own weight: approx. 800 kg

Kondisi: bekas, AC spot welding machine, projection welding machine ARO type MA 350 DC AC resistance welding machine Mach. no. MA35031332 / 9731122B110 Year of manufacture: 1997 Output at 50% duty cycle: 30 kVA Output at 100% duty cycle: 21 kVA Maximum welding power: 156 kVA Throat depth: 550 mm Redpshpf Iyjfx Amusu Electrode arm diameter: 60 mm Electrode holder diameter: 25 mm Cylinder stroke: max. 80 mm Electrode force: max. 730 daN (at 6 bar), steplessly adjustable Operating air pressure: 0.5 to 6 bar Power supply: 400 Volt, 50 Hz Connected load: 75 kVA / 63 Amps / cable cross-section 3x 16 mm² Maximum sheet combination: 5 mm + 5 mm - Welding control: ARO Micro 2X16 III Version 6Z2P Type 1B (6 timers - 2 programs) - Stepless welding current adjustment via thyristor module - Parallel electrode guidance - Double-stroke welding cylinder (pre-stroke / welding stroke) - Operating modes: single stroke and serial spot welding - Electrode force steplessly adjustable via air pressure - Water-cooled by external recirculating cooler (water chiller not included) - Electric footswitch - Control cabinet with controller mounted directly on machine - PC interface RS 485 - Weld counter - Operating manuals for control unit, spot welding machine and electrical schematic included Space requirement (W x H x D): 520 x 1550 x 1150 mm Weight: 290 kg Very good condition

Kondisi: bekas, Spot Welding Machine, Projection Welding Machine DALEX Type PL 63 Serial No. N-0051390 Year of manufacture: 2018 Rated power at 50% duty cycle: 63 kVA Rated power at 100% duty cycle: 44.5 kVA Maximum welding power: 182 kVA Rated welding current: 8.77 kA Throat depth: 250 - 550 mm Maximum arm spacing: 150 to (310 mm) Upper electrode arm diameter: 50 mm Lower electrode arm diameter: 60 mm Electrode holder diameter: 25 mm Electrode stroke max.: 65 mm Electrode force: 100 - 600 daN Operating air pressure: 1 to 6 bar Power supply: 400 Volts, 50 Hz Rated current: 158 A Connected load: 137 kVA - Thyristor power stage - HARMS+WENDE HWH MPS 10β welding controller Redpfxeycv Saj Amusu - 5-stage control, single spot, multi-spot, 8 programs - Electrode force continuously adjustable via air pressure - Parallel electrode guidance - Single-stroke welding cylinder - Water-cooled via external water cooling (water chiller not included) - Electric foot switch - Control cabinet with controller fixed to the machine - Operating manual Space requirement L x W x H: 1150 x 700 x 1600 mm Weight: 335 kg As-new condition

Kondisi: bekas, High-Performance Baler MACFAB - BEMA Type 650A Hydraulic press for packaging waste, recyclable renewable raw materials, and secondary raw materials Serial No. MF J0162 Year of manufacture: 2021 Pressing force: 50 tons Press plate stroke: approx. 1000 mm Cycle time per stroke: approx. 40 sec. Press chamber base area: 1500 x 1100 mm Press chamber height: 1650 mm Filling opening: 1500 x 870 mm Filling height: approx. 1250 mm Bale size: 1500 x 1100 mm Bale height: max. 1100 mm Hydraulic operating pressure: 200 bar Motor power: 5.5 kW Power supply: 400 Volt, 50 Hz, 12 Amp. - Equipped with two hydraulic cylinders - Door locking via threaded spindle with handwheel - Press operation possible only when press chamber door is closed - Two-hand control for hydraulic ejection of finished bale - Clearances for manual strapping - Produces standard industrial bales of 1500 x 1100 x 1100 mm - The highly compacted bale is automatically tilted onto a pallet - Only 62 operating hours Installation dimensions (L x W x H): 2120 x 1350 x 3220 mm Transport height with retracted hydraulic cylinders: approx. 260 cm Weight: 1.8 tons The machine is in excellent, as-new condition. Rsdpevq Rtkofx Amuou The new price for this press from BEMA is EUR 22,200 net. BEMA also purchases packaging waste that you bale with this press.

Kondisi: siap digunakan (bekas), Fungsionalitas: berfungsi sepenuhnya, 09123e66 Redpfx Amozabuueuou

Kondisi: seperti baru (mesin pameran), Penukar Panas Industri, Pendingin Gas, Pendingin AC, Güntner, Mesin Bekas Pabrikan: Güntner GmbH & Co. KG Tipe: GCVC RD 035.1/13-42-0007064P Dimensi keseluruhan: Lebar: 2440 mm Kedalaman: 570 mm Tinggi: 760 mm Tahun pembuatan: 2016 Data kipas: Tipe kipas: VT03167U Kecepatan: 2723 rpm Konsumsi arus: 0,62 A Spesifikasi teknis: Volume: 8,9 liter Tekanan maksimum yang diizinkan: 32 bar / 0 bar 0 / -1 bar Rentang suhu yang diizinkan: -50 °C / +100 °C -5 °C / +40 °C Rjdpfxsy Sbqhe Amuju Tekanan uji: 35,2 bar Kelompok fluida: 2 / fase gas