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(易制爆)硼氢化钾
PK2 SUPELGUARD DISCOVERY HS C18 3UM 2CM
LiChroCART 250-4,LiChrospher 100 Si 15μm定制柱
100ml 透明滴瓶,橡胶滴头
乙腈中51种农药混标
念珠菌显色培养基平板
索氏提取装置套装
CRYSTALLIZING DISHES, WITH SPOUT AND NOTATION BADAGE,MADE OF DURAN O.D. 40 MM, 20 ML
FILTER FOR WITOPED XP (SPARE, SET OF 5)
ISO-Guide34-Silver(Ag)标准溶液,10000mg/L溶于4% HNO3