Stricly implement quality control according to our manual conform to API code and program. From the very beginning of raw material, the supplier or sub-contractor selection to the test and inspection during whole manufacture process we AIPU control every stage products quality and service quality.

We are not only an API certified company but we always move on on the quality control and development during actual operations. Also we are a company in Shaanxi province gained honour of "Company focusing on high quality".