Sch20 Sch30 Sch40 Sch60 Sch80 Sch100 Sch120 Sch140 Sch160 备注 1 10 17 2.5 3.5 2 15 22 3.0 4.0 5.0 3 20 27 3.0 4.0 5.5 4 25 34 3.5 4.5 6.5 5 32 42 3.5 5.0 7.0 6 40 48 4.0 5.0 7.0 7 50 60 3.5 4.0 5.0 5.5 7.0 8.5 8 65 76 4.5 5.0 6.0 7.0 8.0 9.5 9 80 89 4.5 5.5 6.5 7.5 9.0 11.0 10 100 114 5.0 6.0 7.0 8.5 11.0 14.0 11 125 140 5.0 6.5 8.0 9.5 13.0 16.0 12 150 168 5.5 6.5 7.0 9.5 11.0 14.0 18.0 13 200 219