... ISO 9001, SGS, BV, etc. JIS G3454 Seamless Steel Pipe For Oil 1.Specification Type Seamless PipePipe Size1/2"—48" ... St52.4STP G38,STP G42,STPT42,STB42,STS42,STPT49,STS49Applicationpetroleum, construction ,shipbuilding,smelting, aviation, power, foodstuff, papermaking, chemical, ... ,FBE, 3PE,etc.PackagePlastic caps on both ends, Steel bundle,Woven bagOr on customers' requestCertificateISO9001,SGS,BV, ...