In 2002, Jiang Zhengtao joined Shandong Qingdao Jifa Group Co., Ltd. as a weft knitting operator for more than 20 years. By virtue of his skilled skills and hard work, he has created a number of outstanding achievements in the textile industry, and his products have also been sold all over the world. When he was engaged in weft knitting, the quality index reached more than 99.8% every year, and the quality and output were higher than the average value of the whole factory. He said, "Weaving more and weaving better is what I think of as the spirit of craftsmanship."