The machine is proved simple structure and less investment in practice. It can be used cutting-off profiles steel of non-closedsection on line.
该机结构简单、造价低，可用于中小型开口截面的型钢在线切断。
2
The closedsection isn't heavily used by freight and grain barges, which mostly enter the river further south in Iowa and Illinois for the trip to major export depots in New Orleans.