We are the net member of CNPC, and has passed ISO9001 and gained the authorization for use of API6A,16C,16A monogram. With alll staff's's hard work and support of business partners, Chance Door has delveloped into a modernization-management enterprise, whose registered capital reaches RMB20.5 million and annual sales reaches RMB80 million. Among the 150 staffs, there are: 8 senior engineers, 20 experienced engineers& management staffs. We own over 90 sets of various types of processing equipments, 30 sets of inspection equipments. To ensure the stable quality stabi,Jikai also establish mechanical test center and chemical analysis room. Adhering to the business motto "strengthen management, upgrade product quality, establish the best brand and expand markets", we won the awards and recognition from relevant de partments of national and provincial and municipal several times. We mainly manufacture high and medium pressure valves, wellhead and christmas tree, annular and Ram BOP, BOP surface control system, all kinds of manifold, fittings etc. We gain National special equipment production license. All our products are manufactured according to American standard, National standard and the customer's requirements, and widely used in the industry of oil&gas,chemical, metallurgy, engineering etc.