The fire door closer can ensure that the door is closed to the initial position accurately and timely after being opened. The handle of fire door is generally made of stainless steel, which can meet the fire resistance stability within a certain period of time.

hluav taws kub ntsuas qhov rooj xav tau hk,steel qhov rooj vs fiberglass, steel qhov rooj Hoobkas,fire door handle,hluav taws kub resistant qhov rooj rau flats,fire door closer,Thaum muaj xwm ceev qhov rooj, hluav taws kub resistant qhov rooj manufacturers,

hluav taws kub tawm qhov rooj txoj cai, tawm qhov rooj dav qhov tseem ceeb,hluav taws kub ntsuas qhov rooj xav tau hk,hluav taws tawm qhov rooj thawb bar,fire door handle,ul hluav taws kub qhov rooj, hlau qhov rooj, fireproof qhov rooj nrog iav, ntoo hluav taws nyob qhov rooj,fire door closer,

hlau qhov rooj ncej, steel qhov rooj hluav taws,hluav taws kub ntsuas qhov rooj xav tau hk,qhov rooj xauv xwm ceev,fire door handle,hluav taws nyob qhov rooj lag luam,fire door closer