| 美国Cannon 9721-R56 乌氏粘度计,大小0B | 18 | ¥1880.00 | ¥1880.00 | | ¥1880.00 |  |
| I-Chem S129-0250-RWD 250ml 透明窄口瓶 , 0.125" 盖垫,无处理 I-Chem 250ml NM Clear bottle with 0.125" septum unprocessed | 2 | ¥221.00 | ¥221.00 | | ¥221.00 |  |
| Cole-Parmer 4533 W/9998 筛与NIST可溯源校准报告 | 17 | ¥1727.00 | ¥1727.00 | | ¥1727.00 |  |