1. Seamless steel pipe for general use: astm a 53 gr. B,
Steel grade: sa53b and specication 2"-28", 60.3-711.2mm
2. Seamless steel pipe for high temperature:astm a 106 gr. B,
Steel grade: sa106b and specication 2"-28", 60.3-711.2mm
3. Pipeline: api spec 5l. 5ct
Steel grade: b, x42, x46, x52 and specification 2"-28", 60.3-711.2mm
4. Seamless steel pipe for low temperature of -40íp-101íp, astm a333,
Steel grade: gr. A, gr.1, gr.7, gr.3 specication 2"-28", 60.3-711.2mm
5. Seamless steel pipe din2448/1629, din17175-1979, german standard,
Steel grade: st37, st42, st52, st35.8-st45.8/1, specication 2"-28", 60.3-711.2mm;