| | Masterflex® 77301-40 L / S数字式模块化远程I / O分配驱动器与0.1至600 rpm，90到260 VAC | 249 | ￥24950.00 | ￥24950.00 | | ￥24950.00 |  |
| | Cole-Parmer 清除预清洗EPA瓶中，分析证书 | 18 | ￥1897.50 | ￥1897.50 | | ￥1897.50 | |
| | Cole-Parmer 6841 W/9998 筛NIST可溯源校准报告 | 26 | ￥2662.00 | ￥2662.00 | | ￥2662.00 | |
| | Masterflex® 77122-06 Ç/ L ®软管泵变速的1.7到10转，12 VDC | 56 | ￥5680.00 | ￥5680.00 | | ￥5680.00 | |
