CS Welded Tube/Pipe
Standard: API 5L, ASTM A53 ,ASTM A252 Material:  Gr A,Gr.B, Gr.C,G...
  Sizes: 219mm-2850mm Thickness: 6mm-22mm depends on the size St...
  Sizes: 406mm-1422mm Thickness: 7.9mm-50.8mm Standard and steel...
ASTM A513. Material:1008, 1010,1018,1020,1025,1026,4130,4140. Type: 1,...
MATERIAL: GR.A,GR.B ...
  Hot-Dipped Galvanized Welded and Seamless Pipe Steel material...
DIN 2394-81 OD: 6-224 mm Wall thickness: 1-15 mm Steel grade: St 35, ...