| 摘要 |
A primer assembly for a shot gun shell, comprises, (a) a one-piece unitary plastic outer cup defining an axis and having a cylindrical side wall and a bottom wall, (b) and a plastic anvil plate extending in an axial radial plane transversely within and crosswise of the cup interior, the plate having an anvil tip facing toward the mouth of the cup, (c) the anvil plate being integral with the cup side wall and bottom wall so that the plate and cup have one-piece unitary construction.
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