At present, new energy vehicles are mainly divided into two major blocks, one is pure electric and the other is hybrid. Pure electric is relatively easy to understand, is to rely solely on the motor to drive the vehicle. However, it is not so simple to mix. I believe that when old cars look at som-----!
Yesterday, Jufei Optoelectronics, Weiwei, Ruifeng Optoelectronics, Hongli Zhihui, Guanghao, Sanxiong Aurora, Lianjian Optoelectronics, Zhouming Technology, Lehman Technology, Infineon and other 10 LED listed companies disclosed 2018 The first quarter results forecast, in which the four companies suc-----!
The principle of maintenance during valve operation is as follows: 1 Keep the outside of the valve and the active part clean and protect the integrity of the valve paint. The surface of the valve, the trapezoidal thread on the stem and stem nut, the sliding portion of the stem nut and the bracket,-----!
With the rapid development of the economy, cities are gradually growing. While these high-rise buildings have risen, the issue of high-level fire safety has also attracted everyone's attention. What are the points of attention for the acceptance of high-rise fire smoke extraction systems? What-----!
After long-term development, the mineral processing equipment has become an efficient and energy-saving mineral processing equipment, greatly improving the mining rate of mineral resources and avoiding waste of resources. However, in the process of using the mineral processing equipment, some faults-----!
â€œTo me, this is the right choice.â€ In September 2017, we selected the liberation tractor vehicle of FAW Qingdao and the Weichai WP10H series engine. Zhang Lei, a user of Shandong Weifang, again proved his enthusiasm for the Weichai brand. Zhang Lei, a native of Weifang, was the c-----!
Jaw crusher The jaw crusher is mainly used for medium-sized crushing of various ores and bulk materials, and can crush materials with compressive strength of not more than 320Mpa, which are divided into coarse and fine broken. Jaw crusher (broken jaw) is widely used in a variety of mining, metallur-----!