Product Name: double wall + PA12 coated coil tube
Wall thickness:0.7mm±0.08mm
Meterial:Low carbon steel
Main Characteristics: (1).Nylon are coated on the surface of Zinc plated tube;
(2).The products are passivated by chrome-free and it meets the requirements of the friendly-environment;
(3).The solid coating has highly corrosive resistance,good anti-impact force and nice appearance;
(4).Salt spray test can be reached more than 1000 hours without red rust.