... B36.10M-1996,API,ANSI,GB,MSS,JIS,DIN.Material:ASTM A106/A53 GRB/API 5L/ API 5CT/Q345/ ... passed ISO 9001:2000 quality system certification and API certification of American Petrol Institute. products have ... B36.10M-1996,API,ANSI,GB,MSS,JIS,DIN.Material:ASTM A106/A53 GRB/API 5L/ API 5CT/Q345/ ... passed ISO 9001:2000 quality system certification and API certification of American Petrol Institute. products have ...