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China Coal Xinji Chuyuan Company Achieved Prominent Technology Innovation
 

 

China Coal Xinji Chuyuan Company achieved self-repairing of telescopic drum of roadheader by innovating inlay technology and circumferential welding technology and assisting with self-made special tools. The cost of material can be saved by 54,000 yuan for single repair. At present, the company has completed repairing of telescopic drum of five roadheaders through this technology. (China Coal Xinji Chuyuan Company)

 
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