3 layer excavator aftermarket parts

{"cid":"91186469","title":"Hardness Layer Depth Cat320 Track Idler Parts \/ Front Idler Assy Color Optional","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/d2\/46\/1e3eccdf313e89a03384346d5119-200x200-1.jpg","attrs":{"Price":"Negotiate","Brand Name":"Echoo","Model Number":"Cat320","Minimum Order Quantity":"2 PCS","Delivery Time":"5 - 10 working days","Place of Origin":"Xiamen, China","Payment Terms":"T\/T , Western Union , Paypal , Western Union","Supply Ability":"100000 PCS \/ Month","Packaging Details":"Standard wooden pallet","Name":"Cat320 Idler wheel For Caterpillar excavator Undercarriage spare parts","Hardness":"HRC52-56","Application":"Crawler Excavator","Model":"Cat320","Heat Treatment":"Quenching","Warranty":"1 year"}}