... a professional manufacturer of aluminum and bimetal radiators. We are in this field from 2007, with many years experience ... 80x500, 100x500, and bimetal 80x350, 80x500, etc, which are certificated by CE, Rohs, EN442, PCT and ISO9001:2000 etc. ... contact us online or send us email. We are glad to answer your questions.Have a nice day ... : New style Die casting Aluminum Radiator heating by water Shengda