WHFM (WEIHENG VALVE) has been operating since 2006, specializing in the R&D and manufacturing of quick-change blind plates. The company is equipped with over 30 units of machinery including CNC vertical lathes, boring machines, automatic welding machines, shot blasting machines, as well as physical/chemical testing and large-scale top-loading pressure testing equipment. It has passed ISO9001, ISO14001, and ISO45001 certifications, and possesses a high-level capability in development, manufacturing, and inspection. The main products include gas gate valves, quick-change blind plates, three-point and multi-point quick-change blind plates, as well as compact and high-pressure quick-change blind plates.