摘要
细牙螺纹环规 螺纹通止规 牙规M4M5M6M8M10M12M14*0.5*0.75*1*1.5 ...
细牙螺纹环规 螺纹通止规 牙规M4M5M6M8M10M12M14*0.5*0.75*1*1.5
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