DIA. MM INNER DIA (MM) OUTER DIA (MM) WEIGHT (KG/100M)
3.9 19.7×6.6 23.6×11.5 30
6 27.3×9.75 33.3×15.75 77
8 31.7×13.8 39.7×21.8 130
9.9 38.9×14.05 48.8×23.95 205
11.8 46.5×18.5 58.3×30.3 295