Features:
  1) Standards: A53, A106, API 5L, BS 1387, DIN2391, DIN17175, DIN1629, DIN1630,
  DIN2440, DIN2448
  2) Materials: A, B, C, X42, X52, X60, 20G, 320, 360, 440, St 37.0, St44.0, St52.0,
  St35, St45, St 52, St35.8, St45.8, 10#, 20#, 35#, 45#
  Features:
  1) Standards: A53, A106, API 5L, BS 1387, DIN2391, DIN17175, DIN1629, DIN1630,
  DIN
| Technique: | Seamless | 
| Place of Origin: | China | 
| Grade: | 20G | 
| Standard: | BS |