The sound of the pneumatic pavement breaker blows, combined with the explosive air exhaust, makes pneumatic rock drill dangerously loud, emitting 100 decibels at two meters. Sound-blocking earmuffs mu
In order to implement the "Guiding Opinions on Carrying out Quality Improvement Actions" of the Party Central Committee and the State Council and the new requirements of the provincial party committee
In accordance with the spirit of the "Administrative Measures for the Recognition of Leader Enterprises in Shandong Province" (Lu Gongxinfa [2020] No. 8) and the "Notice on Organizing and Declaring Le
Vibration type pneumatic roof bolter machine is widely used in rock hardness f10 or less roadway, especially to adapt to a hard rock bolting assignments, as well as roof bolt holes, and drilling ancho
On December 2, Xu Xili, Minister of the Rights Protection Department of Jining Federation of Trade Unions, Shi Aiping, Director of the Municipal Support Center for Needy Workers, Liu Yanrong, Deputy D
According to the "Several Opinions on Strengthening the Construction of High-Skilled Talent Teams to Promote Industrial Transformation and Upgrading Development" (Ji Ren She Fa [2016] No. 66) and "Eva
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Executive Editor: Linda Zhang