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Hydraulic Concrete Rock Breaker Hammer for Excavators

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Product Introduction

1. Top match with high precision between 20CrMo material forged cylinder and 40CrNiMoA material piston. Thermal expansion coefficient is similar to these kinds of material, making striking power persistent stability and durability. 2. Precise grinding piston process, ensure tolerance less than 0.01mm between and cylinder, assures striking power. 3. Liquid nitrogen cooling assembly process, makes the 40CrNiMoA material front cover & ring bush and 20CrMo material grinding front head match tightl

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