... grey iron casting Standard:DIN/EN/ASTM/JIS/BS Best Quality,Competitive Price,time delivery Professional Service OEM Service gray iron casting ,OEM Casting, Casting ... -GGG70 ductile cast iron,GG15-GG30 grey cast iron, vermicular cast ironProcess: Resin sand casting, Precoated sand casting, clay green-sand ... have more than half century experience in the iron casting line, the annual output is about 5,000 ...