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GB/T 853-1988槽钢用方斜垫圈Square taper washers for slot section2022-06-15

GB/T 877-1986开尾圆锥销Taper pins with split2022-06-08

GB/T 20332-2006锥柄机用1:50锥度销子铰刀Machine taper 1:50 pin reamers with Morse taper shanks2022-06-05

GB/T 11853-2003莫氏与公制圆锥量规Gauges of Morse tapers and metric tapers2022-06-05

JB/T 8364.2-201060°圆锥管螺纹刀具第2部分:60°圆锥管螺纹丝锥Tools for taper pipe threads with 60°thread an...2022-06-05

空分复用中的多芯光纤2020-03-23