康宁corning耗材 C326-0020 I-Chem 20ml 透明样品瓶,密封盖,已认证 LSP I-Chem

康宁corning耗材 C326-0020 I-Chem 20ml 透明样品瓶,密封盖,已认证 LSP I-Chem 72 cs