据交通部权威人士透露 ,“十五”期间 ,我国将继续加快交通基础设施建设 ,为提前 10年建成公路国道主干线系统奠定基础 ,主枢纽港通过能力将有较大增长 ,水运主通道通航条件进一步改善 ,西部地区交通建设取得明显进展。公路建设的发展将增加对钢材的需求。所需钢材的主要品种有 According to authorities authorized by the Ministry of Communications, during the “Tenth Five-year Plan” period, China will continue to speed up its transport infrastructure and lay the foundation for the construction of the trunk road system of the highway 10 years in advance. The major hub port will have greater capacity to pass through and the main channel of water transport will be navigable Conditions are further improved, and traffic construction in the western region has made significant progress. The development of highway construction will increase the demand for steel. The main varieties of steel are available