... heated and pushed or pulled over a form until the steel is shaped into a hollow tube. The seamless pipe is ... sell many other kinds of the production as the follow:Steel pipematerialGB10#,20#,45#,20G.16Mn,27SiMn,15CrMoG,12Cr1MoU,20CrMo,35CrMo ... , fluid pipe, boiler pipe, oil pipe, gas pipe, API pipe, alloy steel pipe, carbon steel pipe and so on. AISI 304 seamless ...