专用材料 Special-purpose material ; special materials ; Specific purpose materials
工程物资-专用材料 Project material - specific materials
专用材料规范 Specifications for individual materials
专用材料的规格 Specifications for individual materials
专用材料的规范 Specifications for individual materials
专用磁性材料 magnetic materials for special purpose ; magnetic materials for general purpose
仪表元件和仪表专用材料 instrument components and instrument-specific materials
专用电子材料 Special Electronic Materials
加筋土用的专利材料 reinforced fill proprietary product
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