1.Chemical composition： C12200（TP2） Cu+Ag≥99.9% P=0.015-0.040% 2. Delivery temper：soft （M）,half soft （M2） 3.The integral un-welding corrugated connet tube,our company is exclusive producing plant only in China,it is authentically qualities and sale very flowing． 4.According to purchaser's requirement,shall be agreement between saller and purchaser,we can provided special size and length connect copper tubes with double ends corrugated．

Item	Symbol	Tolerance(±)	Dimensicns
Nominal size	(mm)		7×0.32	7.94×0.32	9×0.34	9.52×0.34	9.52×0.36
Nominal O．D	O．D (mm)	0.05	7.0	7.94	9.0	9.52	9.52
Nominal Wall Thick-ness	Tav (mm)		0.32	0.32	0.34	0.34	0.36
Nominal I．D	ID (mm)	0.03	6.16	7.032	8.14	8.66	8.52
Botton Thickness	TW (mm)	0.03	0.27	0.254	0.28	0.28	0.30
Fin Height	HF (mm)	0.2	0.15	0.20	0.16	0.15	0.20
Fin Width	WI	0.05	0.188	0.270	0.246	0.255	0.220
Top Angle of Fin	α	5°	53	40	44	53	53
Helix Angle	β	2°	18	18	18	18	18
Fin Type		0	C	C	C	C	C
Number of Fins	N	0	60	50	60	60	60
Weight permeter	(g)	3	60	70	84	88	91