أ: 76.20
OD/ID xt: 50.80/47.50 × 1.65
OD1/ID1 × t1: 50.80/47.50 × 1.65
OD/ID xt: 50.80/47.50 × 1.65
OD1/ID1 × t1: 50.80/47.50 × 1.65