This double steel fire door used for exterior position. Our steel fire rated door is up to 180 mins. Our fire doors and frames are available with either Underwriters Laboratories, Inc., or Warnock Hersey International Labels. We can do primer paint steel door, etc. Our doors are American standard. We have already exported to 56 countries, especially America. And we have already supplied to many residential buildings and commerical buidings.
Our machines are from European and Japan, it has best accuracy. Every once in a while we will have institute to improve workers skills. We can give you all solutions for your project.
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