Among the more than 1200 higher vocational colleges in the country, there are no more than 30 professional applications for photovoltaic power generation technology. Professor Dai Yuzhao, chairman of the New Energy Education and Education Committee of the Ministry of Education, said that because there is a lack of specialized high-skilled personnel in the country, it is generally necessary to recruit graduates of electronics and chemical engineering, and then train them as needed. Most of the photovoltaic industry needs compound talents, and huge gaps need to be filled by high-ranking graduates. The person in charge of a well-known solar energy company also said: The photovoltaic industry is booming, and the application field of solar energy is getting wider and wider, but there are too few professional counterparts, and the gap is about 200,000 per year. Hexagon flange Bolt is a bolt composed of hexagon head, flange plate and Screw, which is used to fasten the parts connecting two through-holes together with nuts. Compared with ordinary bolts, hexagon flange bolts have a larger ratio of support area to stress area, higher preload, better relaxation performance, and high precision and durability of decoration. The hexagon flange bolt head is small with holes, and the slotted bolt can be locked more firmly in case of slight deformation; The flange plate can be divided into flat bottom and toothed shape according to the needs of the industry, and the latter can play a more tightening role. Hexagon Flange Bolts,Hex Flange Head,Hexagonal Flange Bolt,Hexagon Screw With Flange Jiangsu Jiajie Special Screw Co., Ltd , https://www.jiajienuts.com