基本尺寸			型号
			Model
d[mm]	D[mm]	B[mm]
130	150	30	RNA4824
145	165	35	RNA4826
155	175	35	RNA4828
165	190	40	RNA4830
175	200	40	RNA4832
185	215	45	RNA4834
4	8	8	BK0408T2
5	9	9	BK0509T2
18	24	12	BK1812
18	24	16	BK1816
20	26	12	BK2012
20	26	16	BK2016
22	28	12	BK2212
22	28	16	BK2216
25	32	12	BK2512
25	32	16	BK2516
25	32	20	BK2520
28	35	16	BK2816
28	35	20	BK2820
9	13	12	BK2912
30	37	12	BK3012
30	37	16	BK3016
30	37	20	BK3020
35	42	12	BK3512
35	42	20	BK3520
40	47	12	BK4012
40	47	20	BK4020
45	52	20	BK4520
50	58	20	BK5020
55	63	20	BK5520