... .fine finish 4.ideal percentage elongation and strength 5.good mechanical property mechanical steel pipe1)Suitable for conveyance of gas, petroleum, liquid, and ... galvanized C: Length of each pipe: 500mm-16,000mm D: Steel grade: st35,st35.8,st37,st37.4,st45,st52,SAE ... services.For all details, please never hesitate to contact us. mechanical steel pipe