1.The foam cement filled into the steel panels drives away the air inside the steel panels by its own gravity and natural running instead of machine injection.
3.He reminded us that a while ago some of the fast food restaurants moved away from the foam containers to paper. The dioxin problem is one of the reaso .
4.He reminded us that a while ago some of the fast food restaurants moved away from the foam containers to paper. The dioxin problem is one of the reasons.
