About Doors CBM

Doors CBM has a wide range of fire doors especially in American UL standard, besides fire rated hollow metal doors & frames. After many years studying and researching, our team have finally obtained UL certificates for our steel fire rated doors in 2023, with a wide range of size (both fire doors up to 96″ x 96″) and fire rating (45/60/90/120/180 minutes for hollow metal frame, 20/45/60/90 minutes door, we believe we can figure out all standard solutions for both residential and commercial concern. Our UL fire-rated doors and frames correspond to SDI standards. We use only the fines materials and the latest technologies in our production process and our quality control procedures ensure that each door meets our strict standards for performance, durability and safety.