On the morning of July 8, Weishan County Old Science Association President Wang Ling, Weishan County Old Science Association Vice President And Secretary General Chao Wang, Weishan County Old Science
Rock drill: Rock drill is used to drill blast holes with a diameter of 20-100 mm and a depth of less than 20 meters in rocks above medium hardness. According to their different powers, they can be div
Air leg rock drills are a type of hand-held pneumatic tools. Pneumatic leg rock drills are widely used in industries such as mining and construction. But how long does the gas leg rock drill want to u
In order to implement the "Guidelines for Promoting Enterprise Cloud Implementation (2018-2020)" (Ministry of Industry and Information Technology (2018) No. 135), according to the "General Office of t
Pneumatic pavement breaker is a hand-held implement, so pneumatic pavement breaker needs to be compact and portable. Pneumatic road crusher is a hand-held construction machine that uses compressed air
In order to celebrate the 99th anniversary of the founding of the Communist Party of China, review the party’s glorious history, promote the party’s fine traditions, and enhance the cohesion and comba
© Shandong China Coal Group. © 2016
Address:No. 11, North of Kaiyuan Road, High-tech Zone, Jining City, Shandong Province, China
Executive Editor: Linda Zhang