990178 E120B Excavator Chassis Frame Roller
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990178 Top Roller for Caterpillar E120B Excavator Undercarriage Frame Heat Treatment Strengthening Heat treatment is a key process to improve the wear resistance and strength of the carrier roller. Usually, quenching is performed on core components such as the roller body, and some are combined with normalizing and tempering processes. This ensures the surface hardness of the carrier roller......
Quanzhou Nanfeng Machinery Manufacturing Co., Ltd.
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