1.Seamless steel pipe for general use: ASTM A 53 GR.B, Steel Grade: SA53B and specification 1/8"-28", 17-711.2mm.
2.Seamless steel pipe for high temperature: ASTM A 106 GR.B, Steel Grade: SA106B and specification 1/8"-24", 17-610mm.
3.Pipeline: API SPEC 5L. 5CT Steel Grade: B and specification 4"-20", 114-508mm.
4.Seamless steel pipe for low temperature of -40C-101C, ASTM A333, Steel Grade: GR.A,GR.1,GR.7,GR.3 specification 1"-24",
-610mm .
5.Seamless steel pipe Construction used DIN2448/1629,DIN17175-1979, German standard, Steel Grade: st37,st42,st52,st35.8-
st45.8/1, specification 1/2"-24", 21.3-610mm.
6.Structure used seamless Carbon steel pipe GB/T8162-1999, steel: 10#, 20#, 35#, 45#, 16Mn(Q345,ST52)
Size: 21.3-720MM*1-70mm.
7.Liquid transport carbon steel pipe seamless GB/T8163-1999, steel: 10#, 20#, 16Mn(Q345)
Size: 21.3-559*1-50mm.
8. Low or Medium pressure boiler seamless carbon steel pipe GB3087-1999, steel: 10#, 20#
Size: 21.3-508*1-45mm.
