1. General-purpose seamless steel pipe ASTM A53 GR.B, steel number: SA53 B, specifications: 1/4″-28″, 13.7-711.2mm
2. Seamless steel pipe ASTM A106 GR.B for high temperature operation, steel number: SA106B, specifications: 1/4″-28″, 13.7-711.2mm
3. Line pipe API SPEC 5L, steel number: B, X42, X46, X52, specifications: 1/4″-28″, 13.7-711.2mm
4.ASTM A106/A53/API 5L GR.B, steel number: B, specification: 1/4″-28″, 13.7-711.2mm
5. Seamless low-carbon steel pipe ASTM A179 for heat exchangers and condensers, specifications: 3/4″, 1″
6. Seamless steel pipe ASTM A333 for low temperature operation at -40℃-101℃, steel number: GR.A, GR.1, GR.6, GR.7, GR.3, specifications: 1/4″-28″, 13.7-711.2mm
7. German standard DIN2448/1629 seamless steel pipe, steel number: St37, St44, St52, specifications: 1/4″-28″, 13.7-711.2mm
8. Heat-resistant steel seamless steel tube (heat strength tube) DIN17175-1979, steel number: carbon structural steel St35.8-St45.8/I, St35.8-St45.8/III, alloy structural steel 15Mo3, 13CrMo44 , 10CrMo910, specifications: 1/4″-28″, 13.7-711.2mm
9. Seamless steel pipe for structure GB/T8162-1999, steel number: 10#, 20#, 35#, 45#, 16Mn (Q345), specification: 6-720×1-70mm
10. Seamless steel pipe for conveying fluid GB/T8163-1999, steel number: 10#, 20#, 16Mn (Q345), specification: 6-720×1-70mm
11. Low and medium pressure boiler tubes GB3087-1999, steel number: 10#, 20#, specifications: 6-720×1-70mm
12. High-pressure boiler tube GB5310-1995, steel number: 20G, specification: 6-720×1-70mm
2. Seamless steel pipe ASTM A106 GR.B for high temperature operation, steel number: SA106B, specifications: 1/4″-28″, 13.7-711.2mm
3. Line pipe API SPEC 5L, steel number: B, X42, X46, X52, specifications: 1/4″-28″, 13.7-711.2mm
4.ASTM A106/A53/API 5L GR.B, steel number: B, specification: 1/4″-28″, 13.7-711.2mm
5. Seamless low-carbon steel pipe ASTM A179 for heat exchangers and condensers, specifications: 3/4″, 1″
6. Seamless steel pipe ASTM A333 for low temperature operation at -40℃-101℃, steel number: GR.A, GR.1, GR.6, GR.7, GR.3, specifications: 1/4″-28″, 13.7-711.2mm
7. German standard DIN2448/1629 seamless steel pipe, steel number: St37, St44, St52, specifications: 1/4″-28″, 13.7-711.2mm
8. Heat-resistant steel seamless steel tube (heat strength tube) DIN17175-1979, steel number: carbon structural steel St35.8-St45.8/I, St35.8-St45.8/III, alloy structural steel 15Mo3, 13CrMo44 , 10CrMo910, specifications: 1/4″-28″, 13.7-711.2mm
9. Seamless steel pipe for structure GB/T8162-1999, steel number: 10#, 20#, 35#, 45#, 16Mn (Q345), specification: 6-720×1-70mm
10. Seamless steel pipe for conveying fluid GB/T8163-1999, steel number: 10#, 20#, 16Mn (Q345), specification: 6-720×1-70mm
11. Low and medium pressure boiler tubes GB3087-1999, steel number: 10#, 20#, specifications: 6-720×1-70mm
12. High-pressure boiler tube GB5310-1995, steel number: 20G, specification: 6-720×1-70mm
