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甲醇中2-丁酮
MTO GLASS COL. GLASS COLUMN 2MT X 2MM ID P/W 60/80 CARBOPACK B 5% CARBOWAX 20M
CD-BASEWAX气相毛细管色谱柱
N-(叔丁氧羰基)-D-天冬氨酸
VISCOMETER CANNON FENSKE; FOR OPAQUE LIQUIDS, ASTN D446, ASTM D445, ISO 3104, ISO 3105, ADJUSTED
3-O-苄基-D-吡喃葡萄糖
2-甲氧基-4-乙烯基苯酚
Tefluthrin,10ng/ul 标准品
Standard pH electrode, type B, 120 x 12 mm, 0 - 80° Ag/CI, with 1 m cable
TARGET DP 隔垫 聚四氟乙烯/硅树脂