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国家重点新技术推广示范项目──改性沥青防水卷材生产线，今年3月通过国家鉴定后，短短2个多月便赢得市场信赖，受到用户欢迎。颐中（青岛）化学建材有限公司的改性沥青防水卷材生产线项目由国家经贸委、计委、科技部、国家建材局联合下达，在吸收了欧美发达国家生产线的基础
The national key new technology promotion demonstration project, modified bitumen waterproofing membrane production line, passed the national appraisal in March this year and won the trust of the market in just over 2 months, and was welcomed by users. The modified asphalt waterproof coil production line of Langzhong (Qingdao) Chemical Building Materials Co., Ltd. was jointly issued by the State Economic and Trade Commission, the Planning Commission, the Ministry of Science and Technology, and the National Building Materials Bureau, and it has absorbed the production lines of developed countries in Europe and America.