Company has  passed ISO9001 certification.Design for the valve has been  patented  to  improve and extend service life.Successfully invented tungsten oxide & ceramic piston rodInvented superfine abrasion resistant fiber filled PTFE to produce piston ring ,support ring, packing sealing ring, in order to fill the gap in the market.

Company has  passed ISO9001 certification.Design for the valve has been  patented  to  improve and extend service life.