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The fire protection air duct is equipped with smoke exhaust air duct, and the fire protection is equipped with air supply air duct. The first is to extract the flue gas from the pipe outward, and the second is to blow a large amount of air into the room to squeeze out the flue gas. The high-pressure system material can withstand a three-hour fire. The thickness of galvanized steel plate with side length less than 630mm shall not be less than 0.75mm, and 630-1250 shall not be less than 1.0mm.
Specification
| Fire rating | fire protection time can reach three hours |
| Product material | stainless steel (customizable) |
| Processing length | customizable |
| Packaging and transportation | packing of original goods/expenses except for special circumstances |
| Processing customization | Yes |
Production
