We are an OEM supplier specializing in various grey iron castings & their machined parts as per customers' drawings or samples ... and their machined products: 1.Material & Standard:grey iron,ductile iron,malleable iron,carbon steel,alloy steel(high Manganese steel,high Chromium ... jaw plate,bucket tooth,front idler,excavator sprocket,link rod,Bucket link rod,barre liner,grate plate,top grate,open grate, ...