size	d	dk	k	P	L
7.5X52	7.5	11	3.4	2.6	52
7.5X62	7.5	11	3.4	2.6	62
7.5X72	7.5	11	3.4	2.6	72
7.5X82	7.5	11	3.4	2.6	82
7.5X92	7.5	11	3.4	2.6	92
7.5X102	7.5	11	3.4	2.6	102
7.5X112	7.5	11	3.4	2.6	112
7.5X122	7.5	11	3.4	2.6	122
7.5X132	7.5	11	3.4	2.6	132
7.5X142	7.5	11	3.4	2.6	142
7.5X152	7.5	11	3.4	2.6	152
7.5X162	7.5	11	3.4	2.6	162
7.5X172	7.5	11	3.4	2.6	172
7.5X182	7.5	11	3.4	2.6	182
7.5X192	7.5	11	3.4	2.6	192
7.5X202	7.5	11	3.4	2.6	202
7.5X212	7.5	11	3.4	2.6	212