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询购	下载	查看	尺寸 in	尺寸 mm
询购	下载	查看	d₁	d₁	d	d₃	B₁
			2 3/4	69.85	80	105	59
			2 3/4	69.85	80	105	78
			2 15/16	74.613	85	110	50
			2 15/16	74.613	85	110	63
			2 15/16	74.613	85	110	63
			2 15/16	74.613	85	110	82
			3	76.2	85	110	50
			3	76.2	85	110	63
			3	76.2	85	110	63
			3	76.2	85	110	82
			3 3/16	80.963	90	120	52
			3 3/16	80.963	90	120	65
			3 3/16	80.963	90	120	65
			3 3/16	80.963	90	120	86
			3 1/4	82.55	90	120	52
			3 1/4	82.55	90	120	65
			3 1/4	82.55	90	120	65
			3 1/4	82.55	90	120	86
			3 1/4	82.55	95	125	55
			3 1/4	82.55	95	125	68
			3 1/4	82.55	95	125	68
			3 1/4	82.55	95	125	90
			3 7/16	87.313	100	130	58
			3 7/16	87.313	100	130	71