separatory funnel with ground stopper 带磨砂玻塞的分液漏斗

ground glass stopper 磨砂玻璃塞 ; 磨口玻璃塞

centrifuge tube with ground stopper 玻璃磨塞离心管

ground stopper bottle 磨塞瓶

bottle with ground stopper 磨口塞瓶

reagent bottle with ground stopper 磨口试剂瓶

ground-in glass stopper 磨砂玻璃塞

retort with ground-in glass stopper 带磨砂玻璃塞的曲颈甑

octagonal ground-glass stopper 八角头磨口塞