Water well drilling rigs are divided into two types of drilling frames: column frame and frame. The drilling frame can be selected according to the height and usage of the coal tunnel.
Ecently, the Shandong Provincial Integration and Promotion Center announced the list of "Shandong Province's Integration and Integration Priority to Individuals in 2021. Comrade Qu Qing, chairman of C
For further implementation of the CPC Central Committee and the State Council "about to carry out the action guidance for quality improvement and the related implementation plan by the provincial comm
Recently, The mine flameproof and intrinsically safe vacuum electromagnetic starters QJZ-80/1140 (660), QJZ-120/1140 (660), QJZ-200/1140 (660), QJZ-315/1140 (660), qJZ-400/1140 (66) are independently
In order to further expand the group's high-tech business areas, China Coal Group recently invested and established Shandong Yuan Zhou Digital Technology Co., Ltd., which mainly provides digital conte
According to the "Administrative Measures for the Recognition of Municipal Industrial Design Centers of Jining City", Jining City Industry and Information Technology Bureau organize and carry out the
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Executive Editor: Linda Zhang