Screw-yepamusoro vials uye kapu zviri nyore kushandisa uye kuda zvisingaite zvishandiso. Iyo yakasarudzika tambo dhizaini inopa chisimbiso chakachengeteka chakachengetedzeka, kudzivirira kubuda kwemvura. Screw Thread vials inowanikwa mu8-4 (8mm), 9-425 (9mm), 10-425 (10mm) 1.5ml vials uye 13-425 (1325 (1325 (1325 (1325 (1325) 4ML vials.
