... ozone and it's more environmentally-friedly4) Our titanium heat exchanger use seamless pure titanium tube as heat conductor, can ensure the ... titanium heat exchanger used for a long time without ... before shippingCERTIFICATIONSCE, CB, EC, ETL, CETL, C-TICK, WATER MARK, STANDARD MARK, UL, SABS, SANS, SAA, SASO, VDE, RoHS, REACH, ...