丰满女人做a级毛片_久久亚洲国产女同av_A级一级片黄片免费_国产情趣丝袜高跟AV色

機械電機中英

深溝球軸承Deep groove ball bearing
滾子鏈 Roller chain
拉簧 Tension spring
改向托滾 Direction-changing carrying roll
螺母塊 Nut block
改向滾調(diào)節(jié)螺桿 Adjusting screw rod for a direction-changing roll
鏈條張緊螺桿 Chain tightening screw rod
第－節(jié)前端改向輥 First front-end direction-changing roller
后端改向滾 Rear-end direction changing roll
道輪 Tail pulley
托滾 Carrying roll
道輪2 Tail pulley 2 gxgkickz.com
后端鏈輪 Rear-end chain wheel
鏈輪 Chain wheel
軌道托輪 Track supporting wheel
張緊滾調(diào)節(jié)螺桿 Adjusting screw rod for a tightening roll
短改向滾調(diào)節(jié)螺桿 Adjusting screw rod for a short direction-changing roll
主動滾鏈輪 Driving chain wheel
輸送電機鏈輪 Chain wheel for conveying the motor
軌道托輪 Track supporting wheel
伸縮減速鏈輪 Telescopic decelerating chain wheel
電機鏈輪 Motor chain wheel