螺紋環規
螺紋(wen)環(huan)規(gui)
螺紋(wen)環(huan)規(gui)用于測量外(wai)螺紋(wen)尺(chi)寸的正確性,通(tong)端(duan)(duan)為一件(jian),止(zhi)端(duan)(duan)為一件(jian)。止(zhi)端(duan)(duan)環(huan)規(gui)在外(wai)圓柱面上有凹槽。當(dang)尺(chi)寸在100毫米以上時,螺紋(wen)環(huan)規(gui)為雙柄螺紋(wen)環(huan)規(gui)型式...
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