In July 2014, the quality inspection department of Hua ying valve industry co., ltd. and the quality inspection personnel of kazakhstan national petroleum company conducted a comprehensive inspection of export valves, combining the design scheme, manufacturing process and quality inspection in detail. Through the inspection of real objects, examination materials and on-site questions and answers, the harfang personnel believe that: Hua ying valve industry valve product design is reasonable, the selection of appropriate materials, performance indicators can meet the working conditions, and agreed to factory acceptance. The picture below shows some valves of this batch.