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圆皮带用惰轮MBG MBGM MBGA MBGS MBGJ MBGN MBGNM MBGNA MBGNS38
圆皮带惰轮MBGNS MBGNJ28 38 48 50 60 80 100 120 140-3 4 5
圆皮带惰轮MBGN MBGNM MBGNA MBGNS28 30 38 40 48 50 60-2 2.5 3
