Hengda building materials and hardware is located on Shop19273 4F, Gate 29 , Yiwu International Trade City,  the main products: gate valve, globe valve, butterfly valve, ball valve, and a variety of cast iron flanged fittings, kind of reflective materials of steel, malleable iron pipe fittings carbon steel elbow valve scaffold manhole cover galvanized steel pipe annealing wire black wire phone: 13958432645 QQ:987836999