... property seamless schedule 40 pipe1)Suitable for conveyance of gas, petroleum, liquid, and electricity; 2)We have engineering team for pipeline ... system building A: Size Range: Round pipe diameter: 4mm-200mm, thickness: 0.5-10mmB: Surface finish: black ... , blank, bright and galvanized C: Length of each pipe: 500mm-16,000mm D: Steel grade: st35,st35.8,st37 ...