Product name Excavator / quick coupler Track Roller bottom roller, Excavator Undercarriage Parts Material 35MnB Color Yellow or Black & Customized Technique Forging Finish Smooth Surface Hardness HRC52-58,depth:8mm-12mm Warranty time 1 Year / 2000 hours Packing Standard export fumigated wooden pallet Time of delivery Within 15 days after contract established Port of shipment QINGDAO Port