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24312 Supelco γ-DEX™ 225气相色谱柱L × I.D. 30 m × 0.25 mm, df 0.25 μm
24308 Supelco β-DEX™ 325气相色谱柱L × I.D. 30 m × 0.25 mm, df 0.25 μm
Β-DEX ™225气相色谱柱 β-DEX™ 225L × I.D. 30 m × 0.25 mm, df 0.25 μm
24307 Supelco γ-DEX™ 120气相色谱柱L × I.D. 30 m × 0.25 mm, df 0.25 μm
24310 Supelco α-DEX™ 120气相色谱柱L × I.D. 30 m × 0.25 mm, df 0.25 μm
24302 Supelco β-DEX™ 110气相色谱柱L × I.D. 60 m × 0.25 mm, df 0.25 μm
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