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EIC 餘氯測試筆 CL20
Pen type Chlorine Comparator
針筒過濾器 疏水性PVDF
Syringe Filter, PVDF, Hydrophobic
HSIANG TAI 離心機 經濟型
Economical Type Centrifuge
NATIONAL 13-425 中孔螺蓋及墊片
A ssembled Cap and Septa for 13-425 Wide Opening Vials
Shin-Etsu 透氣塞 高透氣內塞型
Stopper, for Test Tubes, Center Sponge, Silicone
Mitutoyo 卡尺 指針式
Caliper, Dial
