Qk series of shallow sampling rig is mainly used in geology, metallurgy, water and electricity, railway, transportation, building materials, construction, environmental protection and other industries, light weight, easy to move, high drilling efficiency, suitable for air foam drilling, DTH Hammer -----
I. Overview of the mine Shuangyashan metamorphic magnetite iron ore bed deposition, North layered ore output, the average thickness of 6 ~ 10m, angle 60 ° ~ 90 °. The ore is mainly composed of strip magnetite and contains trace amounts of hematite with an average grade of 30.79%. The ore bod-----
1. Properties and uses of palladium and platinum Palladium is located in Group VIII of the fifth cycle of the Periodic Table of Elements, atomic number 46, atomic weight 106.42, density 12.02 g/cm 3 (20 ° C), melting point 1550 ° C, boiling point 2900 ° C. Platinum is also located in Grou-----
As in recent years, the rapid development of China's iron and steel industry, China's domestic iron ore can not meet the needs of steel companies. In 2005, China's steel output was 349.36 million tons, and the finished iron ore was consumed by 512.1 million tons. Due to the rapid growth-----
In China, the large-scale production of heavy calcium carbonate began in the early 1980s. After nearly two decades of development, the scale of production has increased from tens of thousands of tons per year to 2.5 million tons in 2000. The variety of products has also been developed from the origi-----
[ China Agricultural Machinery Industry News ] Yao Jianmin, a deputy to the National People's Congress and a researcher at the Institute of Agricultural Resources and Economics of the Shanxi Academy of Agricultural Sciences, said in an interview with reporters that he hopes that the country can-----
On March 9th, it was learned from the website of the General Administration of Quality Supervision, Inspection and Quarantine that Changan Mazda (Weibo) Automobile Co., Ltd. filed a recall plan with the AQSIQ according to the requirements of the Regulations on the Management of Defective Automobile-----