タイトルまたは説明

With the economic and social development, the rail traffic in steel plants increases. According to the specifications of the steel plants, the crossover alloy steel turnout no. ***7 was developed, solving the problem of the high-manganese steel turnout’s fast abrasion. At the same time the single turnout no. ***7 and ***9 have entered parts of the iron and steel enterprises, for example the Hangzhou Iron & Steel Group Company etc