Hangzhou pairs and Industry & Trade Co., Ltd. is a professional production and sales of various flanges, forgings, pipe fittings, valves and trade enterprises. Its holding company has a modern production workshop, from sawing, forging, casting, push the system, heat treatment, machining, physical and chemical testing, surface treatment to the ability to package delivery to integrated production. Our products are widely used in petroleum, chemical, water, electricity, machinery, aerospace and other fields. 85% export products are mainly exported to Korea, Taiwan, Singapore, Germany, the United States, the United Kingdom, the Netherlands and other countries and regions. The major domestic supply large domestic projects in the Daqing Oilfield, Jinshan Petrochemical, Taiwan's Chi Mei. Perfect management system, strict means testing, the team of highly qualified staff for the production of high quality products to provide a reliable guarantee. Product for its perfect the technology and the company's good reputation, and marketing around the world by the praise of customers.