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航空用XM—48密封材料(腻子和腻子布)于1990年4月24日在重庆长江橡胶。厂通过技术鉴定。鉴定会由航空航天部、化学工业部、空军工程部联合主持召开,19个单位的34名航空、化工专家学者参加了鉴定会。该科研成果是由航空航天部621所、603所、重庆长江橡胶厂和西安飞机制造公司共同协作完成的。这种材料是一种新的非硫化密封材料,它具有优良的耐高低温性能,可在-55～+130℃范围内使用,密封性能可靠’
Aerospace XM-48 sealant (putty and putty cloth) on April 24, 1990 in Chongqing Yangtze River Rubber. Factory passed the technical appraisal. Identification by the Department of Aeronautics and Astronautics, Ministry of Chemical Industry, Air Force Engineering jointly presided over the 19 units of 34 aviation, chemical experts and scholars attended the appraisal. The scientific research achievements by the aerospace department 621, 603, Chongqing Yangtze River Rubber Factory and Xi’an Aircraft Manufacturing Company to work together to complete. This material is a new non-vulcanized sealing material, it has excellent high temperature performance, can be used in the range of -55 ~ + 130 ℃, sealing performance and reliable ’