Launder manhole (sewage)

井筒规格	支管型号	流槽检查井（污水）
		起始	直通	90度	三通	四通
315	160	18.67	22.22	22.22	24.56
	200	19.78	23.33	23.33	25.67	50.98
	300	30.00	32.22	32.22	35.56	43.33
450	200	36.11	37.33	37.33	40.78	78.43
	300	49.00	52.44	53.67	58.33	107.19
	400	60.00	64.44	64.44	70.00	91.11
630	200	63.00	66.44	66.44	68.89	132.03
	300	80.56	81.67	81.67	84.00	168.63
	400	96.78	103.89	105.00	110.89	219.61
700	200	70.00	73.44	74.67	77.00	141.18
	300	95.67	95.67	98.00	106.11	189.54
	400	105.00	110.78	117.78	120.11	228.76
	500	194.44	216.67	216.67	238.89	261.11
	600	216.67	246.67	247.78	280.00	302.22
1000	300	244.44	244.44	244.44	244.44	244.44
	400	276.67	276.67	276.67	276.67	276.67
	500	387.78	387.78	387.78	387.78	387.78
	600	546.67	546.67	546.67	573.33	586.67
	800	713.33	713.33	713.33	740.00	753.33