What is the finish of stainless steel polished precision tube?

1, don't look at the model of food-grade stainless steel, look at whether there is a food-grade stainless steel logo on the container, that is, the GB9864 stainless steel logo. In addition, the American Asmi standard has a stainless steel label, such as 304, 306, 3 16, which are all stainless steel models, not necessarily food-grade stainless steel models. 1, food grade stainless steel. ...