The reporter learned from the Guizhou Provincial Economic and Information Commission that due to the multiple factors such as freezing disasters, Spring Festival holiday, and closure of small coal mines, the supply of coal in some jurisdictions in Guizhou is tightening, and the electricity coal inventory of a few power plants is about 10 days. The shutdown capacity accounts for more than 40% of the total installed capacity. During the “Twelfth Five-Year Plan†period, Guizhou will adjust and improve the structure of the coal industry and raise the level of productivity, and encourage large-scale coal enterprises with strong strength inside and outside the province to merge and reorganize small and medium-sized mines. According to the plan, during the “Twelfth Five-Year Plan†period, Guizhou will build a large coal enterprise group with an annual output of 50 million tons and two annual production of more than 30 million tons, and control the coal enterprises within 200.
Low carbon USS flat washers, typically used with Grade 8 or hardened steel bolting, are used under bolt heads or nuts to increase the bearing surface area, or to offer protection so that the nut or bolt can be rotated without distortion of the bearing surface. Flat washers are also used to give tightness to a joint, to prevent leakage, and especially to distribute pressure under the head of a bolt or nut. Dimensional specifications are governed by ASME B18.21.1. USS (United States Standard) flat washers have a larger outer diameter than SAE (Society of Automotive Engineers) flat washers, and can be utilized in nearly any application. ASTM F844 covers the standard specifications for unhardened steel flat washers for general use. Available in zinc plated finish. Zinc plating sacrifices itself, corroding before the base material, offering added corrosion resistance.
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The tight supply of coal in Guizhou will promote the construction of large coal mines
The reporter learned from the Guizhou Provincial Economic and Information Commission that due to the multiple factors such as freezing disasters, Spring Festival holiday, and closure of small coal mines, the supply of coal in some jurisdictions in Guizhou is tightening, and the electricity coal inventory of a few power plants is around 10 days. , the capacity of the shutdown to account for the total installed capacity ratio...