| | Cole-Parmer PMR1-010797 变截面流量计 | 31 | ￥3179.00 | ￥3179.00 | | ￥3179.00 |  |
| | AEROQUAL S500-PDH便携式VOC检测仪 量程0-1000ppm 分辨率0.1ppm 适合室内空气质量监测 | 318 | ￥31800.00 | ￥31800.00 | | ￥31800.00 | |
| | Cole-Parmer DO-72224-20无泄漏离心泵，自吸式聚丙烯磁力驱动，99GPM - 59英尺，三相，1HP TEFC电机 | 309 | ￥30976.00 | ￥30976.00 | | ￥30976.00 | |
