GMP, CE, ISO, SFDA, ROHS. 1, Our crimp glass vial capacity is 1-50ml, the bottle diameter is 10-32mm. 2, Glass color is clear,amber color can also be customized. 3, Glass material: transparent glass we have 5.0 neutral borosilicate glass, 7.0 low borosilicate glass and 3.3 high borosilicate glass; Borosilicate glass w ater resistance is type I.