categories of lunch boxes (1)
What are main categories of disposable lunch boxes
Plastic typePlastic disposable lunch boxes mainly include PP and PS, which are non-toxic, tasteless and odorless. PP is soft, and…
paper lunch boxes (1)
What is prospect of disposable paper lunch boxes
Some plastic tableware contains polystyrene, and substandard plastic tableware will release carcinogens at a high temperature of 60 ℃. If…