HB 4641-1992 加工铝合金用锥柄长麻花钻 d=6.00～30.00mm.pdf

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HB 4641-1992 加工铝合金用锥柄长麻花钻 d=6.00~30.00mm.pdf

HB 4641-1992 加工铝合金用锥柄长麻花钻.d=6.00～30.00mm.pdf

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