O.D:42-219mm 

W .T: 3-16mm 

Length :As customers require 

Technique: Welded

Surface: we can pur oil or color painting or varnish painting 
  Ends :

 1.Plain ends,
 2.Threading at both side with plastice caps 
 3.Threading at both side with socket/coupling.
 4.Beveled ends, and so on
 

 Packing:
 1.Water-proof plastic cloth,
 2.Woven bags,
 3.PVC package,
 4.Steel strips in bundles 
 5. As your inquiry

Usage:
1.For low pressure liquid delivery such as water,gas and oil.
 2.For construction
 3.Mechanical equipment