【纺织；造纸】滚筒电流收集器

roller and compactor【公路】

hinged-slat roller shutter (roller shutter with slats disappearing in each other)

guide, roller, cable

printing roller turning and roll-finishing machine

single-slat roller shutter

roller and apron device for combing machines

roller bearing with loose spacing bodies

embossing roller for modifying the structure of threads, yarns or the like