... .Surface Hardness :HRC47~55 3.Hardness Depth:5~8 Track shoe assy available. Xiamen EBpart Manufacturing Co.,Ltd is a leading ... ,volvo,mitubishi. We can supply both sealed and lubricated track shoe assy(SALT track group),also sealed chains and dry chains ... for excavators and bulldozers,track shoe assy pitches from 101mm to 260mm. Our track chains are ...