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6mm 8mm Rated Heatproof Resistant High Temperature Fireproof Doors Fire Rated 120 Minutes Borosilicate Glass4.0, Find Details and Price about Borosilicate Glass4.0 Fire Rated Glass 120 Minutes from 6mm 8mm Rated Heatproof Resistant High Temperature Fireproof Doors Fire Rated 120 Minutes Borosilicate Glass4.0 - Tianjin Baitai Glass Co., Ltd. China