Hengyu valve mainly produce butterfly valve, checl valve,Y strainer etc.,Our main market is spain,Europe and Annual rate is $10,000,000 for global famous companines, top 500 corporation. Also gain great fame in Mid-east, south-america, south-east asia etc.Our advantage is 0-leakage for any valve under hydrostatic pressure, and also because of our self-control products lines, the price is more competitive than accessories out-purchasing factory.