走进华信

圆管帽

	1∕8″	1∕4″	3∕8″	1∕2″	3∕4″	1″	1-1∕4 ″	1-1∕2″	2″	2-1∕2 ″	3″	4″
O	13.50	17.00	20.00	25.50	31.00	38.50	49.00	53.20	65.50	83.40	97.50	123.50
N	12.10	14.70	16.00	19.50	20.50	24.50	29.00	29.50	33.20	33.50	34.20	37.20