rock rolling rod 凿岩钎杆

rolling rod style pass 滚杠式过站

rod-rolling mill 线材轧机

rolling of copper rod 铜杆的压延

wire-rod rolling machine 线材轧机

rod mill rolling train 线杆轧机机组 ; 线材轧机机组

wire rod rolling mill 线材轧机

continuous wire rod rolling mill 高线生产线