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3-(N-正丁基-N-乙酰基)-氨基丙酸乙酯
一甲基砷溶液标准物质
METHANOL G CHROMASOLV FOR GRADIENT-ELUTI ON
超声波清洗器盖子
POCKET THERMOMETERS, DIFFICO-GRADUATION, RESISTANT TO ACIDS AND ALKALI. IN A NICKEL-PLATED PROTEC
苯硒酚
CHROMATOGRAPHIC-COLUMNS, 65 ML, W. RESERVOIR 250 ML, SOCKET ST 29/32, ST-STOPCOCK W. SOLID PLUG, 2
CTC 进样针
MULTIPLE ADAPTERS, TWO NECKS, CONE ST 14/23, SOCKETS ST 14/23
Natural Rubber Tubing, inner ? 18 mm, outer ? 24 mm, wall thickness ? 3.0 mm, red, temperature range -30°C+70°C, for water and gas Pack = 25 m