Dear Sir, Good day! Do you need valves? We are Zigao Valve Co., Ltd that professional manufacturer of industrial valves, approved by API 6D, API 607, CE, ISO certificates. Our main products are Ball valve /Gate valve/Globe valve/Check valve/Butterfly valve/Plug valve, etc. Our policy is supply high quality products with competitive price and best service to clients. Please contact us for more information if you are interesting. Thanks and best Regards Lorin Xu (Export Manager)