How many "mesh" sieves do the samples pass th…

The purpose is a method of indicating the size of the mesh, and how many holes per inch of the screen is called "mesh". The larger the mesh size, the smaller the mesh size. There are different standards for mesh sizes in various countries, so the meaning of “mesh” is also diffe ...MORE...

· 13 devices were inspected for nearly 15 months, Hang…

Few people will pay attention to the huge machine when entering the stereo garage parking. Is there a hidden danger? According to the regulations, the three-dimensional parking equipment must undergo a “full physical examination” every two years. However, some users did not follow th ...MORE...

Safety technical measures for backing sheds

Safety technical measures for backing sheds (1) Project Overview 1. Back to the shed 2, back to the reason 3. Roadway slope and support form 4. Engineering quantity and surrounding roadway conditions (2) Construction preparation 1, machine preparation Dedicated backing equipment, tools, etc. ...MORE...

Cummins Launches New Choice for Power System of Constru…

On April 23, 2018, Cummins unveiled its off-road electric power system for the first time at the INTERMAT International Infrastructure Exhibition in Paris, France (Cummins booth: Hall 5A, F021), attracting many insiders and visitors. The Cummins Non-road Extended Range Electric Power System (REEV) ...MORE...

Treatment of low grade molybdenum ore by electrooxidati…

Electrooxidation treatment of low-grade molybdenum ore is a new technology developed in recent years. Invented by the US Mines Bureau and expanded on the basis of small tests. Other countries in the world are also conducting in-depth research and generally believe that this is a promising approach. ...MORE...

· Lexus recalled 25,000 vehicles in two months, accoun…

This week, the AQSIQ released the latest data showing that in 2017, a total of 22.848 million defective vehicles were recalled, an increase of 77% year-on-year, marking a record for four consecutive years. One out of every 10 vehicles in the country is involved in the recall. Since the beginning ...MORE...

1468 working face above cut through the fault measures

1468 working face above cut through the fault measures The cut surface of the 1468 working face reveals a fault of H=1.5m in the process of propulsion. The fault is located about 10m above the third head and gradually extends toward the tailing direction, which has an increasing trend for safety. ...MORE...