On 24th August, 2017, Tolian 900t Special Launching Carrier sucessfully finished the erection of last piece of 900t concrete box beam of Chang-Gan Highspeed Railwaly Line section 12. Congratulations to the closure of Chang-Gan Railway Line.

China Railway 21st Bureau Group Co., Ltd. is in charge of the construction of Section 12 of Chang-Gan Railway Line and the total length of this section is 45km. There are 26 tunnels and 531 pieces of box beam. The working condition is very difficult and 21st Bureau found a solution in the 900t Special Launching Carrier of Tolian. The advanced technology saved working time and cost for 21st Bureau tremendously.