Free sample for Special Tool Parts With Tungsten Carbide - YG8 Finishged Tunsten Carbide Valve Spool For Oil Industry – Shanghai HY Industry

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Free sample for Special Tool Parts With Tungsten Carbide - YG8 Finishged Tunsten Carbide Valve Spool For Oil Industry – Shanghai HY Industry,


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

2 2-1


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