... -Hot punchining,CNC machining 3.ISO9001:2008 Oil and gas pipe fitting1. Product Introduction Item DescriptionNameCNC machining part: Copper machining part ... : CNC lathe, Auto-lathe, meter lathe, pressing and forging machine, polishing equipment, etc.(4) Main inspection devices: digital projector, Rockwell hardness tester ... -district, Jimo city,Qingdao,Shandong province,China Oil and gas pipe fitting