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海风藤
Tygon Food Standard Type E id 6.4mm od 9.6mm/reel of 15m
瓶塞 20MM 丁基橡胶
GRIFFIN BEAKERS, CRYSTAL CLEAR, GRADUATED,TPX, 50 ML PACK OF 20 PCS
SHORT NECK FLASKS, FLAT BOTTOM, MADE OF QUARTZ-SILICA, WITH BEADED RIM, 25 ML, 42 X 70 MM
MP-10C制冷和加热循环槽 充液体积4.5L浴槽开口/深度W×D×H(mm)150×160/150
7771 硅质半面型单滤盒防尘面具(小号)
1,7-辛二炔
单甲基四氯二苯基甲烷, 标准品
RTX-5气相毛细管柱