Wood Fire Door：
flush type wooden fire door UL 20 min and metal frame .
Primed MDF flush wood doors are an economical alternative to prefinished wood doors or steel doors and can be used for commercial and institutional applications. Doors are prepped for locks and hinges – can be prepped for other door hardware along with glass lite kits and louvers. MDF doors provide a much smoother surface than natural wood, for easy painting.