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20MM 聚四氟乙烯/丁基橡胶 橡胶 螺纹
Chlorothalonil,10ng/ul 标准品
ODS HYPERSIL 3UM 250X3MM COLUMN
叔丁醇 ,AR,≥99.0%
3-乙氧基苯甲酸
REACTION VESSEL, 6000 ML, DN 200, FLAT BOTTOM, WITH GRADUATION, FLAT FLANGE, FLANGE WITH GROOVE, CYLINDRICAL, ? 215 MM, HEIGHT 285 MM, BOROSILICATE GLASS
PLASTIC HOSE CONNECTION, WITH SILICONE RUBBER SEAL, BENT, FOR GL 18, WITH SCREW CAP
Hibar 100-4,6,LiChrosorb RP-8 10μm定制柱
2,4-二氯苯氧乙酸
2,6-二氨基庚二酸