1.centrifuge tube with screw cap and printed graduations,50ml 2.2000pcs/carton 3.withISO9001,CE, ... -standing,With Screw Cap And Printed Graduations50mlPPCLA002Conical Bottom,With Screw Cap And Printed Graduations50mlPPCLA003Rounding Bottom,With Screw Cap And Printed Graduations50mlPP Plastic centrifuge tube with screw cap -50ml ...