透明样品瓶 (单件) 4ML,13-425,15X45,100/包
商家询价 上海希言科学仪器有限公司
GC/MS Gas Purifier 21" 1/8FIT
Graphite Tubes Integrated Platform Pk.20
AG17-C 阴离子保护柱,2X50MM
AS15 阴离子分析柱,4X250MM
Graphite Ferrule 0.5mm ID
50R-C/F-5/0.63C 50uL 进样针 (36503015),1个/包
Alumina Injector 1.2mm 4300V/5300V/7300V
玻璃纤维素滤膜,100个/包
TG-624 30m x 0.25mm x 1.4m