| | Spectra/Por 2膜，平宽，直径25毫米;，15.9毫米的长度，50'透析管,132678 | 32 | ￥3210.00 | ￥3210.00 | | ￥3210.00 |  |
| | Spectra/Por 6 Membranes; MWCO, 3500; flat width, 18mm; diameter, 11.5mm,132590 | 34 | ￥3400.00 | ￥3400.00 | | ￥3400.00 | |
| | Cole-Parmer T53/1-N082-03G 浮子流量计 | 32 | ￥3234.00 | ￥3234.00 | | ￥3234.00 | |
