The double-sided color steel glass fiber composite air duct uses 30mm thick glass fiber insulation material as the interlayer, and the inside and outside are compounded with color steel plates of diff

The subway fire-resistant air duct uses aluminum silicate wool or fire-proof board as the thermal insulation and fire-proof layer (40~60mm), and galvanized steel plates (0.6~2.0mm) of different thickn

For civil fire-resistant air duct A, aluminum silicate wool is used as the thermal insulation and fire protection layer (15~30mm). Galvanized steel plates are used inside and outside. The thickness of

Galvanized iron sheet air duct is made of galvanized steel plate as the main raw material. It is formed through undercutting and mechanical processing. It adopts a new concave convex rib pressing and

The stainless steel air duct is made of SUS304 stainless steel as the plate. It is a non combustible Class A product and adopts the automatic argon arc welding process (the longitudinal seam is automa

With strong corrosion resistance, flexibility, flexibility, bending and vibration resistance, woven mesh sleeve can enhance protection and has higher pressure bearing capacity.