基本尺寸			型號
			Model
d[mm]	D[mm]	B[mm]
20	27		RLM2020
20	27		LM2015
20	27		RLM2015
20	27		LM2010
20	27		RLM2010
18	25		LM1820
18	25		RLM1820
18	25		LM1815
18	25		RLM1815
17	24		LM172425
17	24		RLM172425
17	22		LM1710
17	22		RLM1710
16	24		RNA6901
16	24		NA6901
16	24		LM1620
16	24		RLM1620
16	24		LM1616
16	24		RLM1616
16	24		RNA4901
16	24		NA4901
15	22		LM152215
15	22		RLM152215
15	20		LM1520
15	20		RLM1520
15	20		LM1515
15	20		RLM1515
14	22		LM1420
14	22		RLM1420
14	22		LM1416