roller lubrication

直角三角形_馆档网 ... "滚子矫平机"," roller leveler" "滚子润滑"," roller lubrication" "滚子辗粉机"," roller mill" ...

机械词典大全-机械资讯... ... roller location； 滚轮位置 roller lubrication； 滚轮润滑 roller mounting screw； 滚轮固定螺钉 ...