High quality track chain D4 D4D D4E bulldozer excavator undercarriage spare part
Negotiable
Min.Order:1
Jingjiang Fuji Technology Co., Ltd.
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High quality track chain D4 D4D D4E bulldozer excavator undercarriage spare part |
material | surface hardness | tensile strength | elongation | impact test | quench depth |
35MnB | HRC52-56 | ≥76kg/mm2 | ≥10% | ≥4kgf·m/cm2 | 8-10mm |