氯丁胶乳沥青防水涂料日前由北京市油毡厂研制生产成功。经中国建研院鉴定,它的各项性能指标在国内同类产品中属领先水平。 在雨季,房屋渗漏形势严峻,据北京市建筑委员会对部分竣工1年以内的房屋进行调 Neoprene bitumen waterproof coating was successfully developed and produced by the Beijing felt factory. Approved by the China Construction Research Institute, its various performance indicators are among the leading domestic products of its kind. In the rainy season, the leakage of houses is severe. According to the Beijing Municipal Construction Commission, the houses that are partially completed within one year are adjusted.