... foam insulation pipe/tube Our product have got the CE certificate and pass the Rohs test! 1,Copper tube: ... 15715,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 ... good heat resistance,low water absorption9,Insulation pipe can be printed with letter. PE foam ...