生产厂家：重庆能拓高仪科技粉尘浓度检测报警仪型号：NTZDH-9SGV8000BF便携式煤气检测报警仪：NTZDH-9SDMCO5008BF电热鼓风干燥箱：NTZDH-95FKS605热电偶：9SGA-9050S)