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针规高精度塞规31.82 31.83 31.84 31.85 31.86 31.87 31.88mm
针规塞规31.8 31.81 31.82 31.83 31.84 31.85 N31.86 31.87 31.8
针规塞规31.8 31.81 31.82 31.83 31.84 31.85 NO31.86 31.87 31.
塞规针规31.8 31.82 31.83 31.84 31.85 31.86 31.87 31.88 31.89
针规塞规31.8 31.81 31.82 31.83 31.84 31.85 31.86 31.87 31.88
AF型无台MXL50齿同步带轮 槽宽7/11/14传动轮 内孔8-20外径31.84
精密针规销式塞规31.81/31.82/31.83/31.84/31.85/31.86/31.89MM
MXL50齿带轴承同步轮 孔5-10 槽宽7/11 涨紧轮惰轮带轮 外径31.84
销式针规塞规高精31.81/31.82/31.83/31.84/31.85/31.86/31.87MM
