China specific post tension duct steel strip material
China manufaturing steel coil,steel sheet, specially used for post tension duct making. And there are also other width strip, 36mm,43mm,71mm,125mm,186mm, no matter how wide and thick, as customerized.

36mm hot dipped strip coil
36mm thin hot dipped galvanized strip, mainly used for post tension duct making machine. making round duct, flat duct and oval duct, diameter: 50mm,60mm,70mm,80mm,90mm flat duct: 50mm*20mm,70mm*20mm,90mm*25mm

Galvanized steel strip/coil
Galvanized steel belt/strip for prestressed steel duct Galvanized steel belt is made from general steel belt, after acid picking, galvanization, packing etc. it is widely used because of its good anti-corrosion property. And it is...