2013 is coming, in order to ensure the end of year production is safety and normal smoothly, from December 7 to 10,2012, Yingli Group made Year-end maintenance for all equipment. The overhaul mainly include: the basic performance of the machine, the fault slagging, the accuracy of the testing equipment. Through the overhaul, hoping to improve the safety and production capacity of the equipment, to ensure that the end of 2012 and 2013 the production of the order.