日本JPG螺纹塞规:适用于玩具塑料工业,模具及五金制造业.可作尺寸基准,又可作比较测理用常用规格 （公制）M1.2＊0.25M2.5＊0.45M6＊0.75M10＊0.75M1.4＊0.3M2.6＊0.45M6＊1M10＊1M1.6＊0.35M3＊0.5M7＊0.75M10＊1.25M1.7＊0.25M3＊0.6M7＊1M10＊1.5M1.7＊0.35M3.5＊0.6M8＊0.75M11＊1M1.8＊0.35M4＊0.5M8＊1M11＊1.5M2＊0.4M4＊0.7M8＊1.2512＊1M2.2＊0.45M5＊0.5M9＊1M12＊1.25M2.3＊0.45M5＊0.8M9＊1.25M12＊1.5