In 2010, China’s large-scale infrastructure construction continued to advance rapidly, stimulating the demand for building materials and other building materials. The prosperity of the building stone market directly promoted the development of various types of rock mines. According to a survey conducted by the China Market Economy Special Research Center, more than 200 newly-built rock mines of various types such as limestone, granite, and fluorite mines newly approved by the country have been reached in the near future.
Building stone is a necessary building material in the construction of roads, railways, docks, airports, nuclear power and other infrastructure. Each new construction project must start with several or even dozens of various types of rock mines. It is understood that China plans to build 153,000 km of highways, but so far, the country’s highways have reached 65,000 km, and only about 40% have been completed. In terms of railways, in 2010, China's fixed assets investment in railways was set at 823.5 billion yuan, of which capital construction investment was 700 billion yuan. These two figures were 37% and 17% higher than 2009 respectively. Railway construction is also ushering in a period of rapid development.
From this data, we can see that in the next three years, there will be more construction rock mines in China approved. The opening of these rock mines provides opportunities for the development of mining machinery. Mass production of new rock mines may boost mining machinery into a new development period.
According to a survey conducted by the China National Market Economy Special Research Center, only one new rock mine with an investment of less than 10 million yuan has reached nearly 100 units. The details are as follows: A newly-built rock mine with an investment of less than 10 million yuan can drive the demand for two submerged drilling rigs, which can drive the demand of 35 dump trucks, and can drive the demand of 10 cone-type and other types of crushers, which can drive 7 The demand of the excavator can drive the demand of the loaders on the 6 sets, and can drive the demand of 4 sets of rock drills, which can drive the demand of more than 10 breakers. In addition, it can also drive the needs of several air compressors, conveyor belts, pressure fans, shakers and refuelling vehicles.
Industrial sectional High Speed Overhead Door
Product Description
Product Description:
Name | Sectional overhead glass panel garage door | |
Operation way | electric /remote/manual | |
Position | garage/shop/auto4S store/Industrial/Garden etc. | |
Door panel structure |
aluminum alloy frame +Tempered Glass / Polycarbonate Glass /double-glazing |
|
Door panel frame |
material | aluminum alloy |
thickness | 2.0mm | |
color |
white, black ,gray, silver gray, wood grain, cream (any colours can be specified) |
|
surface Treating | baking varnish | |
Thickness of door panel |
40mm/50mm |
|
Core of the door panel |
Tempered Glass |
5.0`6.0mm thickness ,Full view clear or frosted |
Polycarbonate Glass |
5.0mm ~10mm thickness ,Full view clear or frosted |
|
aluminium sheet |
9.0mm in thickness,baking varnish with surface traeting,color like the frame |
|
other tempered Glass |
mirror glass,baking glass and many kind of glass for your options |
choose your glass:
The glass can be use polycarbonate glass( clear or frosted )
and tempered glass (clear or frosted/coated colour /tinted color/mirrow)
5-10mm thickness for glass
>>Tempered Glass - enhanced safety
>>Polycarbonate - superior strength with UV protection
hardware Accessories
Guide rail |
Size | 2"/3" |
Materail | galvanized steel | |
Thickness | 2.0mm | |
Bracket | Materail | galvanized steel |
Thickness | 3.0mm | |
Hinge | Model | Finger-protect/normal |
Materail | galvanized steel | |
Thickness | 3.0mm | |
Roller | Size | 2"/3" |
Materail | galvanized steel/Nylon | |
shaft | Model | solid/hollow |
Materail | galvanized steel | |
External key lock | For independent garage door, this sort of lock allows you to use external key to start the clutch deviceand open the door in case of power failure under the condition that there are no entries or side doors. | |
Box airbag safety system |
The door will be automatically to rise If there are any obstacles in the process of downward |
|
Spring break device |
When the spring is broken,the door can auto stop to prevent the door falling down |
|
Cable break safety system |
Once the cable is broken ,this device will blocked on the guide rails in case of breakage of the steel wire prevent the door falling down | |
V external reinforcing bars |
helping to enhance the strength of door panels,1.0mm thickness, 80mm height, with the bars the door can against the Hurricane |




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SHENZHEN HONGFA AUTOMATIC DOOR CO., LTD , https://www.hongfafrud.com