1. Type: Cast Iron Valve Castings 2. ISO9001:2000 certificate 3.Sand Casting, Resin Sand ... . Size: DN15-4000mm.Our company has over 40 series of valve casting products with the standard ANSI,API,DIN,JIS,BS, ... are a manufacturer specialized in producing kinds of valves and valve bodies. Such as butterfly valves, check valves, ball valves, diaphragm ...