L: 18
OD1/ID1 x t1: 23.00/20.00 x 1.50
OD2/ID2 x t2: 13.00/10.00 x 1.50
OD1/ID1 x t1: 23.00/20.00 x 1.50
OD2/ID2 x t2: 13.00/10.00 x 1.50