This kind of conduit is waterproof, oil resistant. It is easy to fix with other equipment and machines firmly. So,it is widely used on electrical project. The material our factory used is as following:

A:hot galvanised steel strip 

B: good quality fire resistant PVC raw material

The spec data is as following:

C: steel strip width:           8.6MM

D: steel strip thickness:    0.2MM

E: PVC coated thickness: 0.45MM

F: min inner diameter:      19.4MM

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