The additional drainage blind ditch is used to rectify the leakage of the tunnel arch and the drainage of the blind ditch and sedimentation tank. Determine the side of the blind ditch with the vault as the center line, so that the blind ditch is located on the side where the water leak…
With the change of people's concept of second-hand car consumption, and the gradual maturity of the used car market, many consumers no longer use the new car a…
Natural gold is an easy-floating mineral. The crystal structure of natural gold is a metal lattice, and the force of the finished product is a metal bond.
Because of the weak metal bond strength, it is determined that natural gold has a small surface…
In Europe and the United States, heavy-duty trucks equipped with AMT (mechanical automatic transmission) are commonplace. In China, due to the price, it is not popular. However, AMT is moving toward us faster than expected.
On April 14, ZF hosted the AMT test drive test in Shangh…
Arsenic pyrite, pyrite and other sulfide inclusion particles of gold cyanide leaching effect is poor, the main reason for the low gold recovery. Some inorganic autotro…
In 2012, the development of China's lubricant industry is quietly changing. After experiencing rapid growth for more than a decade, China's lubricants industry showed a trend of slower growth in 2011. The annual output was 8,265,500 tons, a decrease of 0.325 …
Taichung cut-off valve model establishment introduction : …
At present, the global economy has suffered a setback. From Europe, which has occupied nearly half of commercial vehicles sold by the general public, to emerging markets such as China and Latin America, the commercial vehicle business of the Volkswagen Group is experiencing downward press…