... schedule 20 steel pipe1)Suitable for conveyance of gas, petroleum, liquid, and electricity; 2)We have engineering team for pipeline system building A ... galvanized C: Length of each pipe: 500mm-16,000mm D: Steel grade: st35,st35.8,st37,st37.4,st45,st52,SAE ... .For all details, please never hesitate to contact us. schedule 20 steel pipe