基本尺寸			型號
			Model
d[mm]	D[mm]	B[mm]
	78		NK 65/35
	78		NK 65/25
	85		NKS 65
	85		RNAO 65x85x30
	80		RNA 4911
	80		RNA 6911
	78		RNAO 60x78x40
	72		NK 60/35
	80		NKS 60
	72		NK 60/25 TN
	78		RNAO 60x78x20
	72		RNA 4910
	72		RNA 6910
	72		RNA 4910 RS
	72		RNA 4910.2RS
	72		NKS 55
	68		NK 55/25
	68		NK 55/35
	68		RNAO 55x68x20
	68		RNA 4909 RS
	68		RNA 4909
	68		RNA 6909
	68		RNA 4909.2RS
	65		RNAO 50x65x40
	62		NK 50/25 TN
	65		NKS 50
	62		RNAO 50x62x20
	65		RNAO 50x65x20
	62		NK 50/35 TN
	62		RNA 4908