Dong Nam’s Multi Core Tubes are spirally laid up and available with tubes in stainless steel, copper or copper alloy. Straight bead welded, bright-annealed and calibrated high quality steel tubing for easier identification and protection of tubes after installed. Individual tubes are sheathed by PVC material on the surface throughout the entire length for easy installation.
Extruded outer sheath is oil resistance, weather
proof, flame-retardant, corrosion, acid resistant and