广州怡峰建材有限公司：隔热防火玻璃窗： 防火玻璃窗分钢、木两类，有固定式、平开式、推拉式、上翻式多种。耐火极限：甲级1.5h，乙级1.0h，丙级0.5 h。该产品开启自如，防火、隔声、隔热、透光率高。产品主要用于防火分区，其质量符合国家《钢制防火窗通用技术条件》标准（报批稿）要求。单樘防火玻璃面积应不大于2.5㎡。 Specifications The fire-resistant glass window use Integrity & Insulation Glass 1. Can be cut by water jet 2. 120 min fire rated period The fire-resistant glass window use Integrity & Insulation Glass 1. Can be cut by water jet 2. 120 min fire rated period Glass Features: 1. Integrity and Insulation Glass 2. Clear g