1, Copper tube: O. D. 1/4''&3/8'', 1/4''&1/2'', 1/4''&5/8'', 3/8''&5/8'', 3/8''&3/4'', 1/2''&3/4''

2, Copper tube: Thickness from 0.5mm to 1.5mm.

3, Length: 3 meters to 30 meters

4, Standard complied: GB/17791--1999, JISH3300, ASTM B743

5, Thickness of copper tube compatible any gases: R22, R407C, R410A, R404A, R507C etc.

6, PE insulation pipe: I. D. From Φ8 to Φ22.

7, PE insulation pipe: Thickness from 8mm to 10mm.

8, Character: Anti-UV, good heat resistance, low water absorption

9, Insulation pipe can be printed with letter.