On November 15, 2021, Huayun's patented hose pumps (invention patent numbers: ZL 2017 1 0146816.9; ZL 2017 1 0146817.3) passed the acceptance and were shipped to the United States. 

The Huayun food-grade hose pumps exported this time will be used to transport yeast in a large American company. Huayun's food-grade hose F-NR/F-NBR has passed the PONY test and has been widely used in the transportation of fruit juice, vegetable juice, bean paste, tomato sauce, yeast, fermented grapes and other foods. 

Huayun hose pumps have been exported to dozens of countries and regions including Central Asia, Southeast Asia, the United States, Australia, Europe, Africa, and South America, and are widely used in chemical, new materials, mining, food, pharmaceuticals, environmental protection, construction and other industries.