أ: 57.20
OD/ID xt: 12.70/9.40 × 1.65
OD1/ID1 × t1: 12.70/9.40 × 1.65
OD/ID xt: 12.70/9.40 × 1.65
OD1/ID1 × t1: 12.70/9.40 × 1.65