This week, AQSIQ released the latest data show that in 2017, a total of 20.48 million defective cars were recalled, an increase of 77% year-on-year, setting a record for four consecutive years. An average of 1 out of every 10 .......
The two-sided crushing process is divided into two sections of open road and two sections of closed road. The latter section of .......
There are various mechanisms for the destruction or loss of cyanide in the heap. These mechanisms include: bacteria, that is, the action of microorganisms; the action of air; the action of sunlight; and the action of the pile.
The LED lighting industry is one of the strategic emerging industries in China's 12th Five-Year Plan. The industry is developing very rapidly, and the application market potential is huge. Due to the lack of standardized and standardized optical components and lighting standards, it po.......
According to industry statistics, cumulative sales of the industrial power market in 2014 increased slightly by 1.8% year-on-year, and pressures for survival and development are gradually emerging. The industry predicts that the “micro-increase†will continue in 2015, the.......
This standard specifies the terms and definitions for the life test of the valve electromotive device, test requirements, test items, test methods, test reports and test records.
This standard applies to the whole life test of the valve electric device (her.......