The food-grade conveyor belt used in the food industry can directly participate in the entire process of food processing. It must be such that it does not have any impact on food during its transportation, including changes in food ingredients, odor effects, and harmful ingredients. Pollution. Food is related to human survival and health, and each country has strict regulations on food-level contact testing. The EU has issued Directive 2004/1935/EC on food contact substances since 2005, and it was enforced on October 27, 2006. All exported materials in direct contact with food must comply with the 1935/2004/EC regulations. In the current conveyor belt industry, there are several types of conveyor belt materials that meet the food grade requirements: PU (polyurethane), PE (polyethylene), PVC, SIR (silicone rubber), and PTFE (Teflon). Uliflex produces food-grade conveyor belts that are non-polluting, non-toxic, and odorless when selecting raw materials. The materials conform to national food hygiene standards and the US FDA food-grade standards. Changes in composition, odor effects, and contamination with toxic ingredients.