... SGS test! 1,Copper tube:O.D. 1/4'',3/8'',1/2'',5/8'',3/4'',7/8'',1'',1.1/8'',1.1/4'',1.1/2''2,Copper ... tube:thickness from 0.5mm to 1.5mm.3,Length: 3 ... ,R407C,R410A,R404A,R507C etc.6,PE insulation pipe:I.D.from Φ8 to Φ22.7,PE insulation pipe:thickness from ...