建国后，我国钢轨进口总量达100多万吨，但进入90年代中期以来，钢轨进口仅0.27万吨，而同期出口则达16.57万吨。其原因一方面国内产能完全能满足国内需求，但更主要原因是国家严格控制钢轨进口。加入WTO后，随着关税和非关税壁垒的逐步消除，国外钢轨不可避免地将进入国内市场 After the founding of the People’s Republic of China, the total imports of steel rails in China reached more than 1 million tons, but since the mid-1990s, imports of steel rails were only 0.27 million tons, while exports during the same period reached 165,700 tons. The reason is that on the one hand domestic production capacity can fully meet domestic demand, but the main reason is that the country strictly controls rail imports. After joining the WTO, with the gradual elimination of tariff and non-tariff barriers, foreign rails will inevitably enter the domestic market.