... 2.Antifreezing -40 degree 3.OEM provide Split Pressurized solar thermal system1,Size:58/1800,47 ... /1500 2,CE,SRCC,Solar keymark 3,Lifetime: ... : material purple copper,Glass tube: high borosilicate 3.3, thickness: 2.0mm, Three target type.Insulation ... hailstone resistance: 25mmbracket: aluminum alloy, thickness: 3.0mmFeature:1.That collector can install anywhere, space ...