... /TS16949:2009 certified 3.sheet metal fabrication machining parts Materialsteel, stainless steel, carbon steel, aluminum, aluminum alloy, brass, bronze,copper, bakelite, plexiglass etcGrade of ... , chrome-plating, blackening,temper, quench,sandblastingLanguageChinese,English,JapaneseSoftware usedCAD UG sheet metal fabrication machining parts