Screw Cap Tubes1)Cryotube with external screw cap is designed for freezing samples,The external screw cap design can reduce the contamination probability during sample treatment.2)Cryotube with internal screw cap is for freezing samples in gas situation of liquid nitrogen. The silicone gel o-ring can enhance the sealing performance of the tube.3)The caps and tubes are all made of PP material with same batch and mode. Thus same dilatation coefficient can ensure the tube sealing performance under any temperature.4)Large white writing area allows easy marking.5)Transparent tube for easy observation.6)Round bottom design is good for pouring liquids out with little residual.Morey Best SellersProduction CatalogueProduction Flow
FAQ
1.What is your shipping way?Depending on you, you can choose by air or sea,You can also choose express.2.Are you a factory or trading company?Yes. We have production line.3.Where is your factory located?Our factory is loctated in Suzhou City, closed to Shanghai, Convenient for customers to visit our factory.4.How does your factory do regarding quality control?All the selling products will be tested in 100% to make sure qualified quality and long lasting,and all the operations conducted according to ISO9001.5.What is your delivery time?It will take about 10-30 days to finish an order. But the exact time is according to actual situation and your order quantity.