Tianjin guang-hui valve Co., Ltd., which is a low-pressure valve manufactures. Ghco produces all kinds of valves completed in specifications, butterfly valve, check valve, gate valve are its main products. Ghco's products execute the international standard besides the China standard, just like ANSI, API, JIS, bs, DIN, as. The products' design and development adopts CAD, more than 90% of ghco's high quality products are exported to countries in America, Europe, Australia and south Asia. Company regards the quality management as guide. It established reliable quality management system and approved the ISO 9001: 2000 certification of dnv national institute. Ghco's top-quality valves are widely used in the industries of water, electricity, metallurgy, food, medicine and architecture; Its products are highly appreciated by the clients. Ghco wins the clients' trust based on the high quality valves and perfect service.