Shandong China Coal Group Instrument Branch

Beam + 10mm, -7mm board + 8mm.-5mm. The thickness of the protective layer of the longitudinally stressed steel bars of beam and slab members shall be checked and accepted separately and shall meet the

On August 26, in the underpass of Jiangbei City, the staff accurately positioned the blockage with the help of robots. Chongqing Daily News (trainee reporter Wang Tianyi) After the flood, some underg

On the afternoon of August 27th, Li Hairong, member of the Party Group of Yijinhuoluoqi Investment Promotion Center, Zhao Long, director of the Investment Promotion Office, Wang Fengxia, deputy direct

Because in reality, most of the gases encountered in safety and health are mixtures of organic and inorganic gases. It is just for various reasons that our current understanding of toxic and harmful g

The types of gases that are often detected by gas detectors in daily work are mainly divided into three categories: combustible gas, toxic gas and VOC (volatile organic compound).

On August 22, National Safety Production Fushun Mining Equipment Testing And Inspection Center Zhang Hongfu, National Safety Production Beijing Mine Support Equipment Testing And Inspection Center Exp