(2) This mining method workers can work directly under the large exposed surface of the mine.

(3) The shallow hole retention method is to stratify back to the mining room from the bottom up, using shallow holes to break the ore.

(4) Each time the ore is collected, about 1/3 of the ore is released from the funnel by its own weight (local ore), leaving 2/3 ore as a temporary workbench for the next rock drilling and blasting work. When all the mines are mined, the remaining 2/3 of the ore is released (this is called a large amount of ore). The remaining ore cannot be used as the main means of ground pressure management.

(5) The rock driller is standing on the pile of mines for work.

This mining method is mainly applicable to: steep ore thin and thin ore bodies with stable ore and surrounding rock. Since a large amount of ore accumulates in the stope, the ore is required to be non-oxidizing, agglomerating and self-igniting.

Hubei Ruiyat Co., Ltd. is a national high-tech enterprise specializing in the research and development, production, sales, export and service of aerial work truck, spider truck, trailer, sprinkler, Fire Truck, lifting platform truck, spider car, RV sanitation truck and other parts and equipment.

Our company has an area of 40,000 square meters, factory area of 20,000 square meters and nearly 300 employees. Our product sales and market share have been far ahead in the industry.

We fully implement the standard implementation work, currently we have 4 invention patents, 51 utility model patents, 15 appearance patents, we strictly implement the ISO9001 standard management, we are the first one who adopts refined assembly line in our industry, all products have passed the CE certification. At the same time, we have passed the strict national environmental protection certification- China Quality Certification Center Products Mandatory CCC Certification.