1)we provide fire doors  with different grades
  and various sizes applicable for any places
2)conforms to the state provisions on public security
3)the design is made strictly following the national
  standard GB12955-91
4)strong fire resisting stability,high performance of
  fire resisting integrity and thermal insulation
5)suitable for use in buildings with high resisting
  requirements ,places densely populated,large marketplaces
  and public places of entertainment