双圈F2级不锈钢砝码

评测依据

• review_count：560
• rating_avg：4.5
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• time_range：{"from":"2026-06-26 01:14:46","to":"2026-06-26 01:14:46"}
• intros：{"brand_intro":"双圈是上海精密仪器仪表有限公司旗下品牌，成立于1958年，是中国老牌计量仪器制造商。专注于砝码、天平及实验室配套产品的研发生产，产品广泛应用于国内计量院所、质检机构及工厂实验室。以\"国货精品、价格亲民\"著称，在国产砝码市场占有率领先。","product_intro":"此款F2级不锈钢砝码采用304不锈钢材质，经数控车床精密加工，表面拉丝处理，手感细腻。单个砝码质量允差严格控制在F2级标准内，适用于电子天平、台秤的日常校准。提供100g、200g、500g等常用规格，可单独购买或组合成套装，是国产砝码中的畅销款。","key_specs":{"准确度等级":"F2","材质":"304不锈钢","标称质量":"100g（另有其他规格）","磁化率":"≤0.02","密度":"7.93 g/cm³","校准证书":"含出厂合格证（可加购校准证书）"}}
• alt_products：[{"product_name":"双圈F2级不锈钢砝码","brand":"双圈（上海精密仪器）","model":"F2-100g","price":180}]
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