DAZHONG Copper Industry Co., Ltd. is located in Taizhou of China. Since inception in 1997, we have specialized in manufacturing and supplying a wide range of valves & pipe fittings applied in industries, oil & gas, chemical, petrochemical, food, beverage and refinery, etc.OUR own plant is comprised of machine lines, assembly lines, quality control & verification and customer service departments. Well-trained and experienced technicians guarantee the precision and optimize work-efficiency to provide timely delivery, best quality and competitive price for clients.HONOR Zhengzhongand MDbrand. The Square Ball Valve has won The Golden Prize of International Invention in 2000. Access to more than ten kinds of Chinese invention patents, as the first patent. Since 2008 become China Quality Prestige?AAA Company.FOR further approval of quality, our own plant has been accredited with ISO9001:2000 and GB/T19001-2008 certification.WE are definitely your fast and reliable access to the ever-changing world markets.