Structure of concrete mixer

The concrete mixer truck is composed of a special chassis for the vehicle chassis and concrete mixing and transportation. The chassis of the concrete mixer truck produced in China uses the second type of universal chassis provided by the vehicle man

LED industry steadily expands

Globally, the number of participating companies in the LED industry chain is pyramid-shaped. In 2016, the global LED industry market reached 699.6 billion yuan, an increase of 8.6% compared with 2015, the lowest increase in 4 years. It is expected to continue to decline in the next few years, b