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通過認證 
Fastener Forming Heading Tungsten Carbide Dies with Straight Hole for Both sides, Round Head with Full Thread, C.S.K ( Flat Head), Washer Face, Extrusion ( Half Thread), Taper End ( Type-B Screw), Segmental Dies / Wafers, Square Dies , Taptite for C,B, P,S type or Customized design as per customs’ demand.
