螺纹环规通止规量规M4.5*0.75 M4.5*0.35 M4.5*0.5 4g 6g6h6e

标 签: 螺纹 量规

螺纹环规通止规量规M4.5*0.75 M4.5*0.35 M4.5*0.5 4g 6g6h6e
螺纹环规通止规量规M4.5*0.75 M4.5*0.35 M4.5*0.5 4g 6g6h6e

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