... Certificate:ISO 9001, SGS, BV, etc. Steel Pipe for Boiler with JIS Standard1.Specification Type Seamless PipePipe Size1 ... aviation, power, foodstuff, papermaking, chemical, medical equipment, boiler heat, exchanger, gas metallurgy, Surface Black painting, varnish,FBE, ... /yearAdvantages1.Reasonable price for good quality2.Abundant stock and prompt delivery3.Rich supply and export experience, sincere ...