The double fire door have glass vision panel , fire rating is 90mins with Intertek/UL/FM approval, popular sell in USA, Canada and Middle East. The double door max size is 8'*8'
The double fire door have glass vision panel , fire rating is 90mins with Intertek/UL/FM approval, popular sell in USA, Canada and Middle East. The double door max size is 8'*8'
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