We are in the field of PVC. You said that if the finished product comes out, it is generally harmless, but the people who make it will have it. PVC has ordinary materials and environmental protection materials. Generally, the trademark of PVC materials can't pass the food grade. Generally, it will be fine after 6P. Generally, no one will eat it. This product is flammable at high temperature, and smoking is harmful to human body. Generally, it is molded at 100-200, which is basically non-toxic.