成分  气球氦气工业氦气高纯氦气超纯氦气单位氦气≥99%100.00%100.00%%V氖气≤-4-ppmv氢气≤-10.5ppmv氧气≤20001-ppmv氮气≤800020.5ppmv*≤-0.50.1ppmv二氧化碳≤-0.50.1ppmv甲烷≤-0.50.1ppmv水份≤-30.2ppmv标签：  洛阳市氧气高氧气 洛阳市氧气高氧气厂家河南洛阳市洛阳市氧气高氧气厂家河南洛阳生产销售氧气高纯氧气