Type A: I) Pressure angle: 20 ii) Ratio: 1: 1, 1: 2, 1: 3, 1: 4 iii) M=1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5.
Type B: I) Pressure angle: 20 ii) Ratio: 1: 1, 1: 2, 1: 3, 1: 4 iii) M=1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5.