... MOQ:negotiation 5.OEM/ODM cast iron elbows MaterialDuctile Cast Iron, Grey Cast IronProcessSand CastingSandGreen Sand, Sodium Silicate ... Galvanization Casting part for Elbow Materialductile iron/grey iron/malleable iron/aluminum/copperSurface treatmentshot-blast/deburr/ ... forgings, casting iron, stainless steel, forging product, pigeon forge, die forging, casting steel, casting foundry, alloy casting ...