1.Chemical composition： Cu+Ag≥99.9%， P=0.015—0.040% 2.Delivery temper： Straight lengths： ①Hard drawn； ②bendable coil tubes： Soft Annealed only 3.Supply length：Straight lengths： 3M， 6M ,coil tubes： 15M， 30M 4.Strictly administered the other every specifics of ASTMB837

DN	mean O．D			Wall Thickness				to be Female end I．D for Fitting
	min		max	A	B	C	D	min	max
	coils	straight lengths
6	6.25	6.27	6.35	0.91	0.71	—	—	6.40	6.50
8	7.84	7.86	7.94	0.91	0.71	—	—	7.96	8.05
10	9.42	9.44	9.52	1.02	0.91	0.71	—	9.57	9.67
15	12.57	12.62	12.70	1.02	0.91	0.71	—	12.75	12.83
18	15.72	15.80	15.88	1.22	1.02	0.91	—	15.92	15.98
20	18.85	18.97	19.05	1.42	1.02	0.91	—	19.07	19.17
25	25.09	25.30	25.40	1.63	1.22	0.91	—	25.47	25.55
32	31.37	31.65	31.75	1.63	1.22	—	0.91	31.81	31.97
40	—	38.00	38.10	1.63	1.22	—	0.91	38.15	38.27
50	—	50.67	50.80	1.63	1.22	—	0.91	50.87	51.03