Professional China Tungsten Carbide Rotary Burrs - Cemented Carbide Valve Spool – Shanghai HY Industry

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Professional China Tungsten Carbide Rotary Burrs - Cemented Carbide Valve Spool – Shanghai HY Industry,


 

  1. 1.Valve seat are malting with cemented carbide ball.
    2.Great tightness and wear-resistant.
    3.Smooth and glossy slope surface

6 6-1 x xx xxx


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