After continuous effort and creation, we have the ability to produce 4-way reversing valves, solenoid valves, ball valves, single direction valves, filter driers, oil separators, suction line separators, among which the 4-way reversing valves, magnetic valves, ball valves, mangnetic single direction valves, flange core shells and filter driers have been identified by the province as �filled the domestic vacant and reached the international level