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external coating plastic steel pipe 外覆塑复合钢管
Self-dry external coating 烘烤型外涂层
EC External Coating 外面涂防腐层
External coating of confectionery 糖果外包装
external coating polymer 表面处理聚合物
internal and external coating 内外防腐层
external coating of steel pipe 钢管外防腐
external pipe coating 管子外涂层
More and more epoxy powder has been used as external coating on buried steel pipeline at home in recent years.
近年来，国内埋地钢质管道的外覆盖层已越来越多地使用了环氧粉末。
The gouge resistance of three kinds of pipeline external coating was evaluated by using gouge test and data analysis of reliability.
通过划伤试验和测试数据的可靠度分析，研究了三种管道外防护层的抗划伤性能。
Through observing on the building external coating in Beijing, it was found that the inferiority of the coating are crack, falling, fading and stain.
通过对北京市大量住宅楼外墙涂料饰面层的观察，发现饰面层的劣化表现有开裂、脱落、褪色及沾污等。
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