On January 9, director general Yan Guoqiang of Zhoushan quality supervision bureau led relevant personnel of the quality standard office and Dinghai district sub-bureau to our company for investigation. Through examining the workshop, Yan Guoqiang had a comprehensive understanding of the enterprise's production and operation situation and development trend. He asked for details of the enterprise in the problems in the management, standards, technical innovation and difficulties and put forward the concrete and effective measures.