English: Geoflam gypsum boards used for fire protection of smoke exhaust ductwork
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Own work
Author
[www.geostaff.fr]
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Public domainPublic domainfalsefalse
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{{Information |Description={{en|1=GEO STAFF is specializes in gypsum boards, moldings and fire resistance products. What’s so special about GEO STAFF is that we combine design and manufacturing in one process. A pioneer in the field of fire resistance,