Screw cia vials yog tsim rau ntim ntawm ntau yam tshuaj intermediates, cov tshuaj muaj nqis ntxiv, tshuaj reagents, lom reagents, tshuaj pleev ib ce, essences thiab roj, thiab lwm yam. Nws yog tsim rau lub sij hawm ntev cia thiab kev thauj mus los rau cov khoom, thiab muaj zoo sealing kev ua tau zoo.