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??Yantai Shijin Machinery CO.,Ltd is professional breaker/breaker chisel innovation of profession sales company. There are 2 kinds of brand DEHN products for you of Global per square kilometer. ??To assure the product quality,the company has a complete,quality control system with full range of policies and strict monitoring on the procedures for breaker chisel,silenced type/box type/side type hydraulic breaker,quick couple,excavator ripper,hydraulic compactor,and piston,through bolt of spare parts