... and bulldozer undercarriage parts and auto parts,including track roller,top roller,track chains,idler groups,roller,bushings and pins,bolts ... Production Line Capacity Actual Units Produced(Previous Year) Track roller, Top roller, Track rim, Idler, Track link, Cylinder USD 1,580,000 Per ... tester HR-150B 10 3.0 Acceptable Production Flow: 1.Cutting 2.Pressing 3.Laying 4.Melting 5.Casting 6.Removing ...