Product knowledge28 April 2020

The higher the specific gravity of high-chromium steel balls, the better the grinding effect. The same chromium content and the same hardness. The quality of the steel balls will also be different. ...

Corporate news27 March 2020

Ningguo Kaiyuan---cast grinding balls' supplier (main products: high chromium cast balls, grinding media, bucket teeth, etc.) has the only national-level laboratory in the industry, and the testing ...

Corporate news17 March 2020

The coronavirus epidemic in China has been controlled very efficiently and in a timely manner with the wise decision of the Party Central Committee and the concerted efforts of the whole country. We...

Corporate news09 March 2020

In the face of the epidemic, how can the people of China be excluded from the incident. The cost of the epidemic to China and Wuhan is inestimable. All employees of Ningguo Kaiyuan spontaneousl...

Corporate news05 March 2020

New coronavirus epidemic prevention and control will be the top priority of Ningguo Kaiyuan's current work. Since January 23, Kaiyuan wear-resistant has carried out epidemic prevention and publicity...

Corporate news10 March 2017

Join us as a Agent Ningguo Kaiyuan Electric Power Wear Resistant Materials Co.,Ltd is the second largest manufacturer of cast grinding balls in China. The “GUOYANG” brand of high chrome cast ba...

Corporate news08 December 2016

Copper In 2016 copper should trade at around US$5,300/t. Demand will start to match supply as a string of production cuts start to filter through the supply chain. Global copper metal consumption is p...

Corporate news16 November 2016

From the view of aluminum supply and inventory level, the domestic aluminum ingot maintain a low level of inventory which affected by the supply side reform. In early August, the inventory reached a r...

Corporate news22 September 2016

The China Cement Association has asked the Ministry of Industry and Information Technology to speed up the consolidation process in the local cement industry. According to documents seen by the South ...

Corporate news18 May 2016

Recently, a new aluminum crust breaker which jointly developed by KAIYUAN, Chinese Academy of Sciences and well-known domestic universities went into mass production stage. The new aluminum ...