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1985年10月31日～11月2日在黑龙江省齐齐哈尔市,由国家建材局科学技术开发服务中心组织有关人员对河南建筑材料科学研究所、齐齐哈尔油毡厂共同研制成功的改性石油沥青高质油毡进行了部级技术鉴定。鉴定委员会的专家们认真听取了研制组的介绍,参观了新产品生产线和屋面防水试点工程,并对产品质量进行了抽样检查,一致认为:该产品性能达到了国家建材局下达的技术指标,利用废胶粉生产改性石油沥膏油毡在国内属于首创,其耐热、耐
From October 31, 1985 to November 2, 1985, in the Qiqihar City, Heilongjiang Province, the National People’s Building Materials Bureau Science and Technology Development Service Center organized related personnel to jointly develop the modified petroleum asphalt high quality jointly developed by the Henan Institute of Building Materials Science and Qiqihar Oil Felt Factory. The linoleum was subjected to a ministerial technical appraisal. The experts of the appraisal committee carefully listened to the introduction of the research team, visited the new product production line and the roof waterproof pilot project, and conducted a sample inspection of the product quality. They all agreed that the performance of the product has reached the technical specifications issued by the State Building Materials Bureau, using Production of waste rubber powder modified oil drain grease linoleum is the first in the country, its heat resistance, resistance