Category: 202402
Hengyang City has built a grain drying center 85
February 18, 2024

A few days ago, the reporter learned from the municipal agricultural machinery management department that the city has built 85 grain drying centers, with 309 large-scale grain drying machines and 3 large-scale grain drying centers of 360 tons.

In the past, the general agricultural mac.......

Self-pressure control valve for the occasion
February 18, 2024

Self-operated differential pressure control valve is not applicable to the heat source as the main variable flow control system, when the system takes the heat source as the main variable flow control (inverter, reduce the number of circulating pump, change the smaller circulating pump, etc.) t.......

· Dongguan Fenggang 10 auto repair factory was rated unqualified
February 18, 2024

Recently, the Dongguan Municipal Transportation Bureau announced the results of the 2013 quality assessment of the three types of automobile maintenance enterprises. There were 246 unqualified enterprises in the 2,367 three-category automobile maintenance enterprises in the city, of .......

Definition and classification of mining methods.
February 18, 2024

First, the definition of mining methods: (interpreted from another perspective)

What is the mining method? In order to return to the ore in the mining block, the mining in the ore and in the surrounding rock, the sum of the cutting and mining, is called the mining method. The mining method .......