أ: 68.10
ب: 70.50
OD/ID xt: 38.10/34.80 × 1.65
OD1/ID1 × t1: 38.10/34.80 × 1.65
ب: 70.50
OD/ID xt: 38.10/34.80 × 1.65
OD1/ID1 × t1: 38.10/34.80 × 1.65