On the morning of October 13, a batch of single hydraulic props developed and produced by China Coal Group Machinery Co., Ltd. was inspected and loaded, and the products will be sent to a mine in Yang
On the morning of September 8, a batch of single hydraulic props independently developed and produced by China Coal Group Machinery Co., Ltd. was inspected and loaded and shipped to Luliang, Shanxi.
On the afternoon of August 28th, a batch of single hydraulic props independently developed and produced by China Coal Group Machinery Co., Ltd. was inspected and shipped to a mine in Yuanping City Sha