... 9001, SGS, BV, etc. JIS G3454 Seamless Steel Pipe For Oil 1.Specification Type Seamless PipePipe Size1/2"—48" (DN15-1200)Wall ... shipbuilding,smelting, aviation, power, foodstuff, papermaking, chemical, medical equipment, boiler heat, exchanger, gas metallurgy, Surface Black painting, varnish,FBE, ... bag as per customers request6. CompanyHebei Honry Steel Pipe Co.,LtdContact: sales@ honrypipe.com