... Qingdao Zehan Machinery Manufacturing CO., Ltd.(2) Main products: CNC machining precision parts: valve accessory, brass tube fittings, elbow, tee, ... Sub-district, Jimo city,Qingdao,Shandong province,China cnc machining parts Verified Information This information is Verified by Bureau Veritas ... :2008 SGS, UKAS CN08/10102 Scope: Manufacture of metal valve fittings, pipe fittings and mobile nuts 2011/01 ...