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November 28, 2021

Three kinds of mixed system full PK, who is more in line with the trend?


At present, new energy vehicles are mainly div…

November 28, 2021

[Today's Focus] Q1 Performance Forecast of Ten LED Listed Companies

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 companie…

November 28, 2021

How to operate and maintain the valve during operation

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 n…

November 28, 2021

High-rise fire smoke exhaust system acceptance only look at these nine points

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?…

November 28, 2021

The best way to solve common faults in mineral processing equipment

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,…

November 28, 2021

A native Weifang person mentions brand enthusiasm with Weichai WP10H

“To me, this is the right choice.” 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 W…

November 28, 2021

Introduction of the crusher

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 …

November 27, 2021

Composition, calculation, change, consumption of mine reserves

1 Composition of mine reserves

1.1 Mineral reserves (geological reserves)

The mineral reserves held by the production mines consist of mineral reserves and production of ore. Mineral reserves (commonly referred to as geological reserves) are geological exploration, infrastru…

November 27, 2021

Beijing will welcome the cold of winter and cool down to -15°C today

Beijing will welcome the cold of winter and cool down to -15°C today
Diesel Generator | Diesel Generator Price / 2012-12-22

…

November 27, 2021

Power quality classification and analysis method

In general, power quality problems in the power grid are mainly caused by various disturbances in the power grid. It covers a wide range of things, both short-term and short-term, as well as long-term or long-term: both amplitude and frequency issues. However, on t…

November 27, 2021

How to solve the problem of sand particle size and impurities in sand production line

The large amount of sand and gravel aggregates causes the grain size of the sand produced on the sand production line to be uneven, and the impurities are mixed in the sandstone. In order to produce qualified sand aggregate, we must properly solve the above probl…

November 27, 2021

Automatic packing pressure control slow closing butterfly valve structure features

Automatic pressure control liquid-controlled slow-closing butterfly valve is currently used for turbine inlet of the key control equipment, has a good seal, adjust the performance and create a unique three-eccentric structure of the basic structure of the hydraulic butterfly valve, auto in…

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  • Three kinds of mixed system full PK,…
  • [Today's Focus] Q1 Performance F…
  • How to operate and maintain the valv…
  • High-rise fire smoke exhaust system …
  • The best way to solve common faults …
  • A native Weifang person mentions bra…
  • Introduction of the crusher
  • Composition, calculation, change, co…
  • Beijing will welcome the cold of win…
  • Power quality classification and ana…
  • How to solve the problem of sand par…
  • Automatic packing pressure control s…
  • Measures to protect underground pers…
  • Cable construction quality but the c…
  • Advantages of mineral processing equ…
  • The working principle and applicatio…
  • Visualization of pest report lamp in…
  • Accurately Positioning Yuchai Gold P…
  • 2017 bio-fermentation industry chain…
  • Shanxi Datong holds a national demon…