Seamless steel pipe/SMLS pipe
Seamless steel pipes
Spec: GB/T8163-1999 for Fluid pipe
         GB/T3087-1999 for low and medium pressure boiler pipe
         GB/T5130-1995 for high pressure boiler pipe 
         ASTM A53/A106/API 5L GR. B for fluid pipe
         ASTM A53/A106 Gr. CC for boiler pipe 
Size range: 1/8" xSTD/SCH40~36" x SCH40