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CORK BORERS, MADE OF HARDDRAWN BRASS TUBIN, WITH HANDLES, SET OF 1-3 PC. 5 - 7,5 MM DIA.
丁酸丁酯
APIEZON L
毛刷2.5P
(易制爆)硝酸 工超(沪试)
异烟酸乙酯
气相色谱柱,TG-17MS 15m x 0.53mm x 0.50μm
SCREW-THREAD RETAINING NUT, "TYPE N" SCREW CAP, DISC-RING, O-RING, ST 18.8 BORE 4 MM
滤网,用于PE-HD布氏漏斗,直径160mm
7-溴双环[2.2.1]庚烷