Product feature
★ Raw materials are of high quality galvanized sheet.
★ Mechanical forming enables the surface of galvanized steel plate will not be damaged, and the inner wall of pipe is smooth and easy to be cleaned.
★ Self-forming flange replaces the angle steel flange to ensure the uniform pipe material and reduce the pipe weight.
★ It features high strength, low resistance, good air-tightness, beautiful appearance, simple installation and long service life.
★ It boasts of smooth inner and outer wall, small resistance of air duct, no secondary noise when air is supplied and discharged. Energy consumption and operation cost are largely reduced.
★ The products can be made on site, cut, drilled hole and cut hole. It is easy to install it with low labor and less time. The time limit for the project can be largely reduced.
★ No maintenance is needed after its installation. Thus maintenance cost is largely reduced.