1. Size: (6mm-630mm)*(1mm-45mm) 2. Material: 200 series, 300 series, 400serieS 3. Standard: ASTM, AISI, DIN, JIS, EN, ... 1. Size: (6mm-630mm)*(1mm-45mm)2. Material: 200 series, 300 series, 400series3. Standard: ASTM, AISI, DIN, JIS, EN, GB ... ( Ni 0.8%),202 (Ni 3.5%~4.5%),301(Ni 5%)304 (Ni 8%, Cr 18%),316 (Ni ... test, crystal rot test, heat treatment, NDT 300 series TP 304 cold rolled Seamless Steel Pipe