亚洲av每日在线观看,亚洲av第一页国产精品,国产91久久精品视频,国产69精品久久久久9999不卡

25391 Supelco SUPELCOWAX® 10毛細管氣相色譜柱 SUPELCOWAX® 10 Capillary GC Column L × I.D. 60 m × 0.53 mm, df 1.00 μm

25375-U Supelco SUPELCOWAX® 10毛細管氣相色譜柱 SUPELCOWAX® 10 Capillary GC Column L × I.D. 30 m × 0.53 mm, df 2.00 μm

25376 Supelco SUPELCOWAX® 10毛細管氣相色譜柱 SUPELCOWAX® 10 Capillary GC Column L × I.D. 60 m × 0.53 mm, df 2.00 μm

23327-U Supelco SUPELCOWAX® 10毛細管氣相色譜柱 SUPELCOWAX® 10 Capillary GC Column L × I.D. 30 m × 0.75 mm, df 1.00 μm 別名: 熔融石英毛細管 Supelcowax10 30m 0.75mm 1.0μm

24079INT Supelco SUPELCOWAX® 10毛細管氣相色譜柱 SUPELCOWAX® 10 Capillary GC Column L × I.D. 30 m × 0.25 mm, df 0.25 μm 別名: 熔融石英毛細管 Supelcowax10 30m 0.25mm 0.25μm

24084INT Supelco SUPELCOWAX® 10毛細管氣相色譜柱 SUPELCOWAX® 10 Capillary GC Column L × I.D. 30 m × 0.32 mm, df 0.50 μm 別名: 熔融石英毛細管 Supelcowax10 30m 0.32mm 0.50μm