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鋼絲螺套塞規

鋼絲螺套塞規也叫鋼絲螺套底孔塞規,ST塞規,螺紋護套塞規.

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螺紋塞環規

螺紋塞環規M4*0.5的用法是檢測M4螺距0.5的螺紋孔是否符合工藝要求.螺紋賽規有兩端,一個是通端,另一為止端.通端能夠順利旋合,止端不能證明加工的螺紋孔合格.

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