... XXS Standard:ASTM,ASME,DIN,JIS Certificate:API,ISO,CCS C S seamless pipe ProductionSteel pipeTypeSeamless and ERWSize1/2" To ... API 5L X42/52/60Surface treatmentBlack painting, anti-rust varnish, anti-rust oil, hot galvanized,3PE coating, epoxy coating.PackingPlastic pipe ... and ISO9001:2000Productivity200000 ton per yearKeywords:C S seamless pipe,steel pipe,carbon steel seamless pipe C S seamless pipe