50ml brown glass bottle height 75mm, glass diameter 40mm, the bottle neck diameter 17mm, bottle diameter 19.5mm, mouth diameter 12mm. Glass bottle Material: neutral borosilicate glass pharmaceutical neutral glass, acid and alkali resistance. Bottle diameter using plug testing, sealing performance. internal stress measurement and control in 400nm/mm glass thickness or less, no stress breakage. bottle flute under the outer angle is good, subsidence depth of 1.2mm or more assured, caps closely, to ensure that no leakage fluid. bottle full height limit better than the industry standard deviation of 0.4mm for easy height adjustment when the machine gland. vertical axis deviation of less than 1.2mm to ensure the accuracy of the filling machine. infrared thermoplastic sealed packaging, sanitation, access to convenient and practical strength.