Oil and gas pipe fitting 1.High quality copper 2.Technics-Hot punchining,CNC machining 3.ISO9001:2008 Oil and gas pipe fitting1. Product ... -lathe, meter lathe, pressing and forging machine, polishing equipment, etc.(4) Main inspection devices: digital projector, Rockwell hardness tester, hydraulic valve ... -district, Jimo city,Qingdao,Shandong province,China Oil and gas pipe fitting