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螺絲標(biāo)準(zhǔn)查存 |
點(diǎn)評
杯頭直徑 = 螺紋M的公稱直徑;杯頭高度:當(dāng)M > 10時,高度 = 1.5M,當(dāng)M < =10時,高度 = 1.5 M+1。
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