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CN111185030A
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Novel movable chromatographic column
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CN111154498A
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Preparation method of liquid crystal compound containing 1, 5-indan and difluoromethoxy bridge
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CN111186940A
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Industrial treatment method of high-valence chromium wastewater
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CN106892925A
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A kind of OLED material based on pyrrolo carbazole derivatives and preparation method thereof
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CN106890493A
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A kind of sand core funnel with filter screen
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CN106896037A
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A kind of capillary viscometer apparatus for automatically measuring of system
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CN106896485A
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A kind of microscope hand guard device with clocking capability
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CN106894269A
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A kind of deflaker with water filtering function
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CN106892880A
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A kind of synthetic method of 2- (1- hydroxy-naphthyls)-benzopyrene zinc
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CN106892847A
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A kind of synthetic method of three (tert-butyl-phenyl) sulphur bromines
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CN106896785A
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A kind of organic synthesis automatic control system based on BIM
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CN106890685A
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A kind of new evaporating dish heater
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CN106892908A
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A kind of synthetic method of 5- (the bromo- 2,3- diphenylquinoxalines -5-yl of 8-) thiophene -2-formaldehyde
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CN106892872A
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A kind of synthetic method of 2- (4- bromophenyls) -4- xenyl -6- phenyl pyrimidines
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CN106892796A
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A kind of new OLED intermediary material preparation methods
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CN106892805A
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A kind of synthetic method of 4- (4- hydroxy phenyls) cyclohexanone
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CN106892865A
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A kind of synthetic method of the chloro- 6- p-methylphenyls quinoline of 2,4- bis-
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CN106892824A
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A kind of anthracene derivative OLED material preparation method based on arylamine substitution
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CN106890613A
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A kind of novel ultrasonic microwave temperature control reactor
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CN106895676A
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A kind of thermostatic drying chamber with oscillation functions
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