qingdao zhifeng petroleum equipment co., ltd

http://indomonster.com/qingdaozhifeng

Our company is an export right manufacturer in Qingdao. In 2007, we passed the ISO9001: 2000 international quality management system, and in 2008, we passed American petroleum institute quality management system of preference API SPEC Q1 and ISO/ TS 29001. Also we have the certificate of material supplier of China national petroleum corporation, the annual supply is more than 1600tons

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