Three-quality management.
According to the query on Baidu Encyclopedia, the flat straw with three holes is called: The three-grade straw is also called a three-hole tube or a three-hole tube. Because it is designed in a relatively flat shape and the three holes are small, it is convenient. When drinking, let the milk tea flow rate slow down to prevent scalding your mouth and serve as a stirrer. According to the material, it can be divided into two types: PP (food grade polypropylene) and PLA (degradable material).