Main material
Q235B. In line with the GB/T700-2006;
Surface treatment
Electric galvanizing; Hot-dip galvanizing;
Tube bundle material: electrogalvanizing, in accordance with GB/ t9799-2011; Insulation material: polyurethane (PU); Fire rating: B2; Also can provide zinc chromium coating, hot dip galvanized, epoxy coating and other surface treatment