White material gasket can only used in the cap without pattern in the inner side. This kind of gasket is heavier than others, with better tightness. Shape dimension please refer to product specifications. Technical requirement can meet GB/T13521-92
1.Burr,defect and crack are not allowed. Must not be stained with dirt 2.pattern clear,trademark and text must be correct. 3.Allowable tolerance of pattern:¡Ü1mm 4.No rust stain except(cutting edge) after 30 minutes of Copper sulphate testing. 5.Instantaneous pressure¡Ý800KPa 6.Continuous resistance to carbon dioxide leakage¡Ü5% 7.Gasket non-toxic no odor,flat and complete without any broken,no foreign material,and firmly bonded with the cap
