... , Dip tube- PE *taterials of teats:pvc ,rubber *tube:glass Pump Specification: Closure Diameters: 13/415, 15/415,18/400,18/410 ... ,Dosage: 3.6-4.4gApplication :medichine, cosmetis etcFor the first pump, 3-4 times of pumping will work.Multi-layer leakage ...