Copper-coated welded steel tube Application: May be used for each kind of heat conduction material, as well as the electrical a Copper-coated welded steel tube 1) Material: SPHC, SPD, SPHE, Q195-Q235, etc.2) Application: Be used for each kind of heat conduction material, as well asthe electrical appliances interior use,such as refrigeration,heating machine .We can produce according to customers' ...