| GasAlertMicro M5-XWCY-R-P-D-Y-N-00 多种气体显示器/探测器 | 157 | ¥15750.00 | ¥15750.00 | | ¥15750.00 |  |
| 美国asc 2L气体采样袋 | 0 | ¥65.00 | ¥65.00 | | ¥65.00 |  |
| 国产遮板式防堵皮托管 Ф8×800mm | 8 | ¥825.00 | ¥825.00 | | ¥825.00 |  |
| Whatman PTFE 聚四氟乙烯滤膜10411902 PTFE 3uM 0.97x2.66 INCH 250/PK,尺寸:0.97x2.66 INCH 孔径3.0um | 10 | ¥1000.00 | ¥1000.00 | | ¥1000.00 |  |