| | Sensidyne 171SC 气体检测管 | 8 | ￥820.00 | ￥820.00 | | ￥820.00 |  |
| | Whatman Grade QM-H石英滤纸圆片1853-050QM-H 50MM 25/PK | 8 | ￥832.00 | ￥832.00 | | ￥832.00 | |
| | 英国Whatman1851-150硼硅酸纤维滤纸QMA 15CM 100/PK | 51 | ￥5112.00 | ￥5112.00 | | ￥5112.00 | |
| | 英国Whatman 1542-185，定量滤纸―硬化无灰级Grade 542 : 2.7 μm，18.5CM | 6 | ￥699.00 | ￥699.00 | | ￥699.00 | |
