Yantai Ray-Valve Metal Product Co., Ltd. is an private company, which is specialized at researching, developing and producing stainless steel valves. Located in the beautiful city of Yantai, it covers a floor area of more than 2000 square meters. The company has a high-quality employee’s team and modernized production lines, such as lost-wax investment casting, CNC machine and assembly inspection etc. It has grown to be a major supplier of all kinds material of precision castings and ball valve, globe valve, check valve, gate valve, filter, tube fitting, quick joint, etc, which female thread, male thread, welded end, flange end are available to manual, electric actuator and……