3M 干湿两用砂纸 734 系列

评测依据

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• intros：{"brand_intro":"3M公司成立于1902年，总部位于美国明尼苏达州，是全球知名的多元化科技创新企业。在磨料领域，3M凭借专利微复制技术和精密涂附工艺，长期占据工业及民用砂纸市场领先地位。其产品以高耐用性、均匀粒度、低粉尘排放著称，深受木工爱好者与专业工匠信赖。","product_intro":"3M 734系列干湿两用砂纸采用碳化硅磨料与防水背基，支持干磨与水磨两种模式。精密分级的磨料颗粒确保划痕均匀一致，适合木器打磨、漆面抛光及金属表面处理。背基柔韧耐用，不易撕裂，配合手磨块或砂光机使用效果更佳。提供从60目到2000目的全粒度选择，满足粗磨到精磨全流程需求。","key_specs":["磨料类型：碳化硅","背基材质：C-weight防水纸","粒度范围：60目-2000目","尺寸规格：230mm×280mm（标准张）","适用方式：干磨/水磨","包装数量：50张/包"]}
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