Lu Renfeng, a craftsman from a big country, chief technician of China North Industries Group, welder of Inner Mongolia First Machinery Group Co., Ltd. The body of a tank is welded by hundreds of steel plates, with more than 800 welds. For decades, the qualification rate of Lu Renfeng's welding products was 100%. However, it was this 100% that condensed countless sweat and tenacity, because this 100% was completed by only one hand, and his holding was like welding rods that firmly welded him to the cause Become a leader in welding technology@ Inner Mongolia Autonomous Region Federation of Trade Unions