... Germany, France, Turkey, USA, Canada, Taiwan, Korea, Vietnam, India , Pakistan, Iran, and so on. Steel pipematerialGB10#,20#,45#,20G ... treatmentCopper coatedGalvanizedothersortingStructural pipe, fluid pipe, boiler pipe, oil pipe, gas pipe, API pipe, alloy steel pipe, carbon steel pipe ... People Structural pipe, fluid pipe, boiler pipe, oil pipe, gas pipe, API pipe, alloy steel pipe, carbon stAISI 202 ...