Seamless steel pipe / Carbon steel pipe

Carbon Seamless Steel Pipe:
1. Seamless steel pipe for general use: ASTM A 53 GR. B,
Steel Grade: SA53B and specication O. D: 1/2"-28", 21.34 -711.2mm W. T: SCH10S- SCH120
2. Seamless steel pipe for high temperature: ASTM A 106 GR. B,
Steel Grade: SA106B and specication O. D: 1/2"-28", 21.34 -711.2mm W. T: SCH10S- SCH120;
3. Seamless steel pipe DIN2448/1629, DIN17175, German standard,
Steel Grade: St37, st42, st52, st35.8-st45.8/1, specication O. D: 1/2"-28", 21.34-711.2mm W. T: SCH10S- SCH120;
4. Line Pipe: API SPEC 5L
Steel Grade: A, B, X42, X46, X52 (PSL1)and specication O. D: 2"-28", 60.3-711.2mm W. T: SCH10S- SCH120;
5. Casing Pipe: API SPEC 5CT
Steel Grade: J. K. N. L. P(PSL1) Threads: STC, LC, BC and specication: 5"-13-3/8", 127-339.7mm;
We would like to make mutual and benificial business for long terms.