Zhengzhou City Zhengdie Valve Co.,Ltd (ZD Valve), a member of China Valves Technology Inc. is specialized in developing and manufacturing low and middle pressure butterfly valve, ball valve, tilting disc check valve, and valves in special design, and also of the main manufacturing base of large size butterfly valve in China. ZD have:DNV-ISO9001 certificateDNV-ISO14001 certificateDNV-OHSAS 18001 certificateTUV-CE certificateAPI 6D certificate for ball valveWRAS certificate for butterfly valveNSF certificate for butterfly valveNational Manufacturing License Certificate of Special Equipment(TS) etc.We have 460 employees in factory, including 112 technicians and engineers, 106 medium-level title personnel and 30 senior engineer and senior administrants with rich experience in valve industry. The high makings team gives us the good technology,quality guarantee and scientific administration ability. Our company contains 46,800 m2, construction area is 31,000 m2. The annual production ability can reach 16000 tons. We own more than 150 sets of lathes, milling machines, planning machines and boring machines etc processing equipments and complete testing & inspection equipments and instruments such as pressure test machines, life test machine, ultrasonic detector, metallographic instrument, portable material inspecting instrument, tensile test machine, impact test machine, etc.Our main products are :--Double eccentric butterfly valves--Triple eccentric butterfly valves-- Rubber lined butterfly valves--Eccentric ball valve(plug valve)--API6D ball valve(main produced by our brother company Hanwei Valve)--Tilting disc check valve--Hydraulic control butterfly valve/ball valve etc. ZD Valve will lead the enterprise to the future with creativity and a modem business plan.We sincerely welcome all the customers at home and abroad to our company.