Different size glass test tubes, high quality laboratory test tubes Feature 1.Usage: Lab implement, medical consumables, bottle
2.Diameter: 6-40mm
3.Length: 5mm-400mm
4.Thickness: 0.6-2.0mm
5.Material: borosilicate 3.3, neutral borosilicate 5.0, borosilicate 7.0
6.Mouth: normal, flanging, screw
7.Bottom: round or flat.
8.Water resistance: USP Type I
9.Acid resistance: USP Type I
10.Alkali resistance: USP Type II
11.Transformation temperature: 550+/-10 degree centigrade
12.Whole course controlled by ISO9001: 2000