Wen Zhou Heng Zheng Seal Manufacturing Co.Ltd. is a company make seals, specializing in the production of mechanical seals, a variety of supplementary materials. We have developed more than 100 series, thousands of models, possession of light engineering seals, medium-sized mechanical seals, and mechanical seals with pot. They applicable to all kinds of water pumps used at home, industrial pumps, chemical pumps, automotive cooling pumps and various pumps.