... 350mm.3.Weight:30kg.4.certificate:ISO9001:20081.sand casting cast iron 2.Standard: ASTM, AISI, BS, DIN, JIS, ... Feature:sand casting cast ironMaterials: grey iron, ductile iron, malleable iron,heat resistant iron, carbon steel, stainless steel, aluminum, bronze, brass, zinc ... in Ningbo, China ( Valve Casting / Casting valve / ball Valves) 3. Size: According to the drawing requirements4. Weight:0 ...