【建筑】辊式遮蓬【建筑】滚筒雨篷

roller and compactor【公路】

smooth wheel roller【公路】

guide, roller, cable

printing roller turning and roll-finishing machine

roller mill【机】;roller press【机】;wheeling machine【皮革】

single-slat roller shutter

farmyard manure spreader with horizontal roller

superfinishing machine for conical roller