API oil pipe keyword:API oil casing pipe,api casing pipe,API 5CT casing pipe APL OIL pipeProduct name: Carbon steel seamless pipe1. Standard: ANSI B36.10, ... .10, DIN 1629, DIN 171752. Material: ASTM A53, ASTM A106, API 5L, Q235, 20#3. Size: 1/2" to 48", ND ... inquiry in detail.12. Attached some pictures for your reference: API oil pipe