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乙酸钾
1711 防护眼镜(强涂层),蓝色镜架
150x4.6mm 3um Hypersil GOLD SAX
4-(2-氨乙基)苯磺酰胺
2种元素混标,铼 铑
20mm灰色丁基橡胶垫
Tube fitting nylon upper fluted nut only
Stoppers with folding skirt, type 19,4 mm, dimensions 15,8 x 17,8 mm, thermal restistance from -20 °C to +100 °C made of natural rubber Case = 20 pcs.
2-甲基苯甲基膦酸
气相色谱柱,TRACE TR-35MS 气相柱, 60m, 0.32mmID, 0.25μm 液膜厚度