Valve Manufacturers | Everbright valve (certified) | Valve Valve is provided by Shandong China Everbright Limited. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) is specialized in the "valve" of the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Manager Ma. A21F, A21H-C type spring inching valve internal thread dimensions and connecting dimensions Valve Co., Ltd. is located in Shandong, China Everbright International Kite WEIFANG A21F safety valve, Jinan-Qingdao, Lai Wei-speed, Jinan Railway internal thread running through the urban Weiqi safety valve, transportation is very convenient. The company specializes in producing valve manufacturer valve models, welcome new and old customers to order our products! When the equipment or pipeline pressure or temperature exceeds the set pressure relief valve, pressure relief or cooling automatically open, to ensure that equipment and the pipeline medium pressure (temperature) below the set pressure (temperature), protective equipment and pipe work, prevent accidents and reduce losses. Valve Co., Ltd. Shandong Everbright valve manufacturer specializing in the production, welcome new and old customers to order our products!