both. The registered trademarks of Shandong Longda Flour Co., Ltd. are "Bai Xuefei, Jiu Wenlong". Through the efforts of the company's technicians, it has formed a series of high, middle and low-grade flour of "Bai Xuefei, Jiu Wenlong" brand, which can meet the various needs of different levels of consumer groups and different grades of flour products.