... )Standard:GB 5237-2008 3)high-quality aluminum alloy production Electric Aluminum Alloy Radiator1)Alloy No.:6061,6063...2)Temper:T3 ... profile, curtain wall profile, building roofing profile, finned tube profile, general profile and others6)Certificates:ISO 9001:20087)Standard: GB5237-2008 ... film wrap, string, woden case,or according to customers' need. electric aluminum alloy radiator