| | Whatman Grade2799滤纸10360279 Grade2799 20MMx25M 1/PK IMPREG LEADACETATE | 0 | ￥0.00 | ￥0.00 | | ￥0.00 |  |
| | Whatman CF12 滤纸10384288 CF12 1.25INX1500FT 1/PK | 0 | ￥0.00 | ￥0.00 | | ￥0.00 | |
| | Dwyer 2302 差压表 | 7 | ￥740.00 | ￥740.00 | | ￥740.00 | |
| | Whatman GF6 玻璃微纤维滤纸10370071 GF6 20X20MM 2500PK，0.3 -0.5μm 标准细颗粒物 | 0 | ￥0.00 | ￥0.00 | | ￥0.00 | |
