Yang Gaozhan, male, born in 1970, a member of the Communist Party of China, is a mechanic fitter and maintenance team leader of Hebei Zhangxuan High tech Technology Co., Ltd. He has won the honorary titles of National Technical Expert, Hebei Province's Outstanding Contribution Technician, Hebei Province's Top Ten Employee Inventor, etc. His scientific and technological achievements of front-line workers have twice won the Metallurgical Science and Technology Award of China Iron and Steel Industry Association and China Metal Society, and he is the leader of the national skill master workshop and Hebei Province's model worker talent innovation studio.

He has been engaged in equipment maintenance for 29 years and has taken root in the front line. Focusing on the themes of cost reduction, energy conservation and emission reduction, technical transformation, technical innovation, safety production, etc., he has solved more than 140 production problems of continuous casting machines and achieved more than 100 innovative achievements. 90 of them have won national utility model patents and 4 have won national invention patents. Among them, seven technological innovation projects, including "optimization of steelmaking caster equipment system", "technical innovation and application of twelve strand billet caster", "research and application of comprehensive maintenance technology for large-scale ladle turret", won the municipal hall level scientific and technological achievement award, especially in the hydraulic field, which cracked the key technology of precise control of high-temperature production and became an advanced technology in the industry. His innovative projects have won 2 provincial and ministerial scientific and technological achievements, 9 municipal and department level achievements, and created economic value of about 38 million yuan. He trained more than 2600 trainees on the platform of the national skill master studio and Hebei model craftsman talent innovation studio. His apprentices won 12 senior technicians. His apprentice Hu Zedong won the honorary title of "outstanding contribution technician" in Hebei Province in 2021. (Contributed by Hebei Federation of Trade Unions)