推荐资源 57BYGH311D-12 NEMA 23双轴双极步进电机 0 0 直流减速电机“ SG555123000-20K” 2.9瓦特,150r / min,0.23 N.m [DC.SG555123000.20K] 0 0 CL-Servo步进电机4nm,60SC40D 0 1 Kingsbright SA56-EWA11 7段LED模块 0 0 主轴3.2kW D100 taitran水冷 0 0