It is made of high quality of brass and shaped by hot forging, which is the newest technology from Europe. Having definitely sealed when closing and no water can seep through. Each valve is produced under high performance machine, and guaranteed 100% to be free from seepage and leakage. The handwheel is made of mild steel and epoxy costing coloration. All parts are carefully controlled and assembled to provide smooth opening and closing. Every piece is passing quality control system before delivery, which is follow to B.S. Standard 5154, PN16. We guarantee our Gate Valve is one of the "SANWA" products.