Analysis of the common technology of small pitch LED

2019 is a year of great development for small pitch LEDs. In this year, we have seen a lot of cutting-edge technologies. The new generation of COB, TOPCOB, MinLED, MicorLED, especially the appearance of flip-chip and common yin seems to have pointed out a direction for the future development .......

Winter operation skills of wrecker

The rain and snow weather is full of whiteness everywhere, which will burden the driver's eyes. At this time, you must not drive the vehicle for a long time, and it is best to take a rest at an interval of two hours. Wrecker trucks have heavy rescue tasks in.......

China's first auto parts industry base


Annual sales of 10 billion yuan, accounting for 11.5% of the country's auto parts market share, Zhejiang Yuhuan County has thus become the first auto parts industry base recognized by the China Association of Automobile Manufacturers.

Ductile iron valve material selection

For the nominal pressure PN ≤ 4.0MPa, the working temperature of -30 ~ 350 ℃ of water, steam, air and oil media ductile iron valve, the selection of the main parts of the material, see "Table 1": "Table 1" ductile iron Valve Material Selection Part Name Material.......