onekin door core are mainly be used as fireproof door , the raw material is magnesium oxide which is a natural fireproof material ,the more of door core details as follow:

Lightweigth

For light woden door: 220 - 280 kgs/m3

For normal door: 280 - 340 kgs/m3

For special steel door: 350 - 500kgs/m

Onekin door core use for many kinds of fire door:

1. fire resistant timber door sets

2. fire resistant steel door sets

3. fire resistant timber door sets with steel structure

4. other materials fire resistant door sets