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By certification 
1. Zoomlion Track Roller /Lower Roller /Bottom Roller Specification:
Technology |
Forging |
Feature |
Heat treated, Tempering Track Roller |
Material |
40Mn2,50Mn |
Surface Hardness |
HRC52-60 |
Depth Of Hardening |
10-15mm |
Color |
Black or as your request |
2. Zoomlion Bottom Rollers are suitable for those model:
Zoomlion |
QUY80, QUY130, QUY180, QUY260, QUY350, QUY500, ZTM300, ZCC750, ZCC800H,ZCC550, ZCC550H, ZCC750H, ZTM500. etc |
3. Zoomlion Lower Roller Assembly:
Our lower roller assembly includes Roller, Shaft, Collar, Ring, Bushing, Seal, Floating, O-Ring, Plug.
4. Package & Delivery:
Generally, Zoomlion Track Rollers are packed in Pallet Covered With Thin Film and Sticker;Cap screws for Track Roller are packed in Carton.
