Hydraulic Notching Machine for Angles
This machine is used for notching corner of angle steel in the tower industry.
Metal Notcher,Angle Notching Machine,Cnc Notching Machine,Angle Cutting And Punching Machine Shandong EN FIN CNC Machinery Co., Ltd , https://www.sdfincncmachinery.com
The new round of land and resources survey is a national special project approved by the State Council. It is mainly aimed at China's land resources, mineral resources, marine resources and other natural resources, and conducts comprehensive investigation and evaluation. The implementation period is from 1999 to 2010, with a total investment of 12 billion yuan.
Over the past 12 years, the land and resources survey has accumulated more than 900 new mineral deposits. Among them, there are 152 large and extra large mineral deposits. Most of these mineral areas are transferred to subsequent exploration and development. A number of important mineral resources were added, including 130 billion tons of coal, 5 billion tons of iron ore, 38.5 million tons of copper, 449 million tons of bauxite, 1,830 tons of gold, and 468 million tons of potassium. On this basis, the commercial mineral exploration will be followed up for further detailed investigation and exploration, thus realizing the situation that the resources of the important minerals are still maintaining a rapid growth under the condition of high resource consumption.
By the end of 2009, the identified reserves of coal, iron ore, copper, bauxite, gold, potash and other minerals increased by 28%, 11%, 16%, 30%, 42% and 23% respectively compared with the end of 2001.
At the same time, iron, copper, aluminum, potash and other countries lacking minerals have achieved major breakthroughs in prospecting. Newly discovered large-scale super-large copper mines such as Tibet's Drake Dragon, Yunnan Prang, Yangla, Xinjiang Tuwu-Yandong, and added 38.51 million tons of copper resources, which is expected to form new Gangdese, Northwest Yunnan, and Xinjiang East Tianshan. National copper resource base. In the Shanxi Jiaokou-Western, Henan Jiyuan-Xin'an, southwest Guangxi, northern Fujian and other areas, the amount of bauxite resources increased by 450 million tons. The estimated amount of potassium salt in the Qaidam Basin was 214 million tons, and the large potash mine in Lop Nur has been developed on a large scale.
Leading zinc, tungsten tin, gold and silver and other dominant minerals create a new prospect of prospecting. In the areas around the Yangtze River, Nianqing Tanggula, southwestern Henan, southwestern Tianshan, and the northwestern Sanjiang North section, major new discoveries were made in lead-zinc prospecting, with an additional resource of 83.55 million tons. A number of large-scale tungsten-tin ore mines such as Bailashui, Xitian, Xinjiang Baigan Lake and Xiaoliugou in Gansu have been newly discovered. The newly added tungsten ore resources are 1.06 million tons and the tin mine resources are 2.64 million tons.
According to reports, in the Qinghai Dachang, Liaoning Qingchengzi periphery, Inner Mongolia Zhulazha, Hainan Baolun and other gold deposits, as well as western Sichuan, Henan Southwest and other areas of silver mine survey and evaluation have made important progress, the new gold resources amount of 1830 tons The amount of silver mine resources is 85,165 tons, which has significantly improved the guarantee of China's precious metal resources.
Times of stroke(times/minute)
20~25
15~20
Maximum Angle bar size(mm)
140x140x12
200x200x20
China invests 12 billion to investigate land resources and finds hundreds of millions of tons of minerals
A new round of land and resources surveys conducted by China over the past 12 years has achieved significant results. More than 900 new mineral deposits have been discovered, and major shortages of minerals such as iron, copper, aluminum and potash have achieved major breakthroughs in prospecting. On the 9th, the China Geological Survey released the results of the evaluation of mineral resources in the National Land Resources Survey in Beijing.
This machine is used specially for cutting down angle bars in certain angle as wanted, it can also punch and mark with suitable dies.