Zhang Yanguo, workshop director of Hebei Duoxiangyi Vegetable Oil Co., Ltd., was awarded the title of Model Worker in the Hebei Provincial Trade System and the title of Provincial Model Worker in 2024. The "Zhang Yanguo Model Worker Innovation Studio" was established. Under his leadership, a pure natural fiber filtration process was developed, which solved the stubborn problem of grinding sesame oil in the industry. Won the title of Model Worker of Hebei Provincial Trade System and the title of Provincial Model Worker in 2024. The "Zhang Yanguo Model Worker Innovation Studio" was established. Under his leadership, a pure natural fiber filtration process was developed to solve the industry's stubborn problem of grinding sesame oil.