上减 YQY-12 系列 特种气体减压阀

评测依据

• review_count：3200
• rating_avg：4.3
• brand_reputation：0
• merchant_count：0
• price_range：[300,799]
• dimension：best_value
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 01:13:32","to":"2026-06-26 01:13:32"}
• intros：{"brand_intro":"上减（Shangjian）是上海减压阀厂有限公司旗下品牌，成立于1958年，是国内历史最悠久的减压阀制造商之一。公司拥有丰富的制造经验，产品涵盖氧气、乙炔、氮气等各类气体减压阀。上减以价格亲民、质量稳定著称，在传统工业及教学实验室领域拥有广泛用户基础，是许多老用户的信赖之选。","product_intro":"上减YQY-12系列特种气体减压阀采用黄铜阀体，适用于氧气、氮气、氩气等非腐蚀性气体。单级减压设计，输出压力可调范围广，带有安全泄压装置。接口为标准G5/8\"，适配常见工业气瓶。该产品结构简单，易于维修，适合对精度要求不高的常规气体供应场景，如焊接、切割及基础实验。","key_specs":["输入压力：15 MPa","输出压力：0.1-1.0 MPa","材质：黄铜","接口规格：G5/8\"","适用气体：氧气、氮气、氩气","重量：0.7 kg"]}
• alt_products：[{"product_name":"上减 YQY-12 系列 特种气体减压阀","brand":"上减（Shangjian）","model":"YQY-12-02","price":320},{"product_name":"华青 HQ-200 系列 特种气体减压阀","brand":"华青（Huaqing）","model":"HQ-200-AR","price":450},{"product_name":"捷锐 152系列 特种气体减压阀","brand":"捷锐（GENTEC）","model":"152-15-40","price":680}]
• kol_quotes：["@焊接老师傅：上减用了二十年，还是那个味。","@实验室管理员：便宜耐用，坏了不心疼。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":75.9,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍认为该产品价格实惠，适合基础应用。许多老用户表示用了多年仍能正常工作，但部分用户反映压力调节精度一般，不适合高精度实验。在拼多多平台销量极高，是许多小型作坊和学校实验室的入门选择。整体评价以实用为主，性价比突出。","source_count":0}},{"source":"objective","score":85.46259519038075,"weight":0.6,"confidence":0.5,"details":{"rating_avg":4.3,"price":320,"wom_score":75.9}},{"source":"user_review","score":86,"weight":0.15,"confidence":1,"details":{"rating_avg":4.3,"review_count":3200,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["@焊接老师傅：上减用了二十年，还是那个味。","@实验室管理员：便宜耐用，坏了不心疼。"]}}]
• method_version：v2
• search_visual：null