, nylon telescopic duct used in welding the exhaust gas extraction, air conditioning and ventilation equipment: room, basement, tunnel, municipal pipeline engineering, machinery and shipbuilding engineering, mining and ventilation equipment, fire smoke and other adverse work environmentair exhaust, set in addition to smoke with.Performance; anti-acid and alkali, good resistance to chemical, easy to carry, resistant to oleic acid and smoldering; arbitrary bending, SPIDERS body by, is lightweight; bend radius is approximately equal to the outer diameter, electro-static discharge (basis BGR132, former ly EN 1/200) grounding the spiral: Construction: spring steel wire coated wall: wall: high-temperature adhesive coating coated a noncombustible top engraved Vera (kewair) materials; temperature range: -20 degrees to +80 degrees; a short period of time up to 120 degrees. Air conditioning and ventilation equipment welding exhaust extraction, high temperature exhaust color: GrayTelescopic duct Home: 
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