精工精密机床弯板 花岗岩直角靠铁 角度板

评测依据

• review_count：320
• rating_avg：4.9
• brand_reputation：0
• merchant_count：0
• price_range：[2000,4999]
• dimension：best_value
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 01:54:20","to":"2026-06-26 01:54:20"}
• intros：{"brand_intro":"精工精密仪器有限公司成立于2012年，总部位于广东东莞，专注于花岗岩量具和机床附件。采用天然黑色花岗岩（济南青），经切割、研磨、人工铲刮等工艺，产品具有无磁性、耐腐蚀、热稳定性好等优势，主要服务半导体和精密模具行业。","product_intro":"采用济南青花岗岩，莫氏硬度7级，无磁性不吸附铁屑。工作面经手工铲刮，平面度达0.003mm，垂直度0.01mm/400mm。热膨胀系数低（6.4×10⁻⁶/℃），适合恒温车间。侧面开有螺纹孔，可安装把手或夹具。特别适合三坐标测量机、影像仪等检测设备。","key_specs":["材质：济南青花岗岩","硬度：莫氏7级","垂直度：0.01mm/400mm","平面度：≤0.003mm","规格：400×250×200mm","重量：约28kg"]}
• alt_products：[{"product_name":"精工精密机床弯板 花岗岩直角靠铁 角度板","brand":"精工","model":"JG-GR-400","price":2200}]
• kol_quotes：["@测量专家刘博：花岗岩弯板是精密测量的终极选择。","@模具总监陈工：精工的花岗岩弯板比铸铁的稳定太多。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":95.9,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户评价极高，称其'精度无敌'。多位质检工程师反馈用于三坐标测量时，数据重复性极好。无磁性特点深受EDM和磨床用户喜爱。缺点是价格较高且易碎，需小心搬运。天猫好评率100%，复购率约8%（多为企业采购）。","source_count":0}},{"source":"objective","score":95.86433311103701,"weight":0.55,"confidence":0.5,"details":{"rating_avg":4.9,"price":2200,"wom_score":95.9}},{"source":"user_review","score":98,"weight":0.15,"confidence":1,"details":{"rating_avg":4.9,"review_count":320,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["@测量专家刘博：花岗岩弯板是精密测量的终极选择。","@模具总监陈工：精工的花岗岩弯板比铸铁的稳定太多。"]}}]
• method_version：v2
• search_visual：null