1)Rubber track pad/track shoe for excavator: PC, EX, ZX, MM, 2)steel with imported rubber; 3)size: 300-500 length; 4)clip on 1)Rubber track pad/track shoe for excavator: PC, EX, ZX, MM,2)steel with imported rubber; 3)size: 300-500 length; 4)Bolt-on type; 5)OEM/ODM rubber pad