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敌草快二溴单水合物
39种农残混标b组(GB/T20769 BePure-30111XM-b-1mL
Polymeric plasticizer (Santicizer 411)
二甲戊灵-D5 RMCP16008-5mg
Tri- and tetramethylphenanthrene Kit (0456.17-200-IO, 9878.17-50-IO, 9879.17-50-IO, 0782.17-500-IO,
硫脲
吡菌苯威 标准品
First Standard® 呋虫胺
仲丁灵农药标准溶液
Beryllium oxide (无证书)