... :ISO 9001, SGS, BV, etc. JIS G3454 Seamless Steel Pipe For Oil 1.Specification Type Seamless PipePipe Size1/2"—48" ... ,shipbuilding,smelting, aviation, power, foodstuff, papermaking, chemical, medical equipment, boiler heat, exchanger, gas metallurgy, Surface Black painting, varnish, ... transportationwoven bag as per customers request6. CompanyHebei Honry Steel Pipe Co.,LtdContact: sales@ honrypipe.com