... osidation method. Flap contacts are made by alloy internal oxidation method , and the brazing side is silver .. Chinese National Standard of Bimetal Rivets ... .6,0.8,1.00.3-0.41.2,1.5 1-24,69,10,11,123.00.8,1.0 ... ,1.2 0.351-20.501.56,83.51.5,2.0 1-3.04.01.0,1.2,1 ... .52.08,104.52.0,2.5 10,15 5.01.0,1.21.5,2.0 0.401-20.602.55 ... .52.5,3.015,206.03.0 6.5 1.21.52.0 0.501-20 ...