1.Material:40Mn 2.A lot of items in stock 3.Customize are accepted 4.Port:XIAMEN 5.The drawing can be provided by yours 1.Product descriptionStrict quality management to produce effective and stable products,and meet customer's demand.Track Roller KOMATSUBULLDOZER D20 VED30-12 VED31PX-21D40-1D41-6D50-15D60-3D60-6D61D65-12D80-12D80-18D85A-18D85A-21D150A-1D155A-1D155A-3D155AX-3D275A-2D275A-5D355A- ...