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精密针规销式塞规31.81/31.82/31.83/31.84/31.85/31.86/31.89MM
针规高精度塞规31.82 31.83 31.84 31.85 31.86 31.87 31.88mm
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
针规塞规31.8 31.81 31.82 31.83 31.84 31.85 31.86 31.87 31.88
塞规针规31.8 31.82 31.83 31.84 31.85 31.86 31.87 31.88 31.89
销式针规塞规高精31.81/31.82/31.83/31.84/31.85/31.86/31.87MM
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
针规塞规31.8 31.81 31.82 31.83 31.84 31.85 NO31.86 31.87 31.
针规塞规31.8 31.81 31.82 31.83 31.84 31.85 N31.86 31.87 31.8
