wooden fire door can not use PS for filling

- Jun 10, 2019-

Wooden fire door can not use polystyrene for filling,because the PS can not fireproof,so if  have fire,the wooden fire door will not have the fireproof function.So the wooden fire rated door's filling only can use mineral fireboard. it has fireproof function.if you want konw more,pls visit our website:www.ghdwi.com,