أ: 12.70
ب: 90.90
OD/ID xt: 76.20/72.90 × 1.65
OD1/ID1 × t1: 76.20/72.90 × 1.65
ب: 90.90
OD/ID xt: 76.20/72.90 × 1.65
OD1/ID1 × t1: 76.20/72.90 × 1.65