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Since July 2014, between the South Chang Zi and Pingshun Station of the newly-built railway channel in middle south of Shanxi, the railway department successfully opened up the comprehensive test of heavy-load railway of 30T spindle, marking the new breakthrough in our heavy-load railway technology. Analyst points that with the improvement of railway bearing housing technology, the high-speed rail basically realized domestic manufacturing, and the related patents have been gradually accepted.