With the integration of China with the world economy and the growth of foreign trade, exchanges between countries in the world are becoming more and more frequent, and there is mutual exchange among countries.
Economic development, the degree of exchanges between countries has increased rapidly, China's agricultural products and commodities need to be imported or exported, the transport of products can not be separated from the smooth road. In recent years, China and the surrounding countries of the road repair, where the road to repair, trade to do. Without access, Chinese silk would not be shipped all over the world, so there was the Silk Road. Opened the channel for silk exports.
If there is no channel, foreign light industrial products will not come to the Chinese market, can not meet the needs of the Chinese people. Of course, the construction of roads can not leave the steel pipe, steel pipe construction of concrete structure, strong pressure resistance, very good to bear the weight of vehicles and pedestrians, so that the road is durable.
More and more roads are being built, and the business of steel pipe Mills is doing better. The party and the state have strict requirements for road construction and put an end to the Tofu slag project. Steel pipe factory should strictly control the quality, to ensure that the road is strong and durable.