... :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, ... transportationwoven bag as per customers request6. CompanyHebei Honry Steel Pipe Co.,LtdContact: sales@ honrypipe.com