Zhengzhou city's comptrollers of polymechanical equipment mainly produce springs, springs, springs, french springs, compressed springs, plate springs, springs, foreign springs, car springs, mine-mechanical springs, nitrogen-gas springs, model springs, mechanical equipment, etc., and can process all non-standard products from the mechanical series of moulds, solve the various technical difficulties of the mechanical series of molds on behalf of clients, sell products to south-east asia and europe, and win unanimous feedback from a wide range of clients