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石墨垫
饮用水中表面活性剂质控样
Piston for Transferpette? Digital type 2 - 20 μl
4-氯丁醇醋酸酯
气相色谱柱,TG-5MS AMINE 30m x 0.25mm x 0.25μm
PTFE Temperature Probe, Type K, Baffle Probe, Cable 2M,Shaft - ? 8, L 200, 16x12x150, Total L 350mm
2,3-二溴吡嗪
素白纸57*50*12
O-RING,
塑料洗瓶(加厚)