Multi core tubes are spirally laid up and available with tubes in stainless steel, copper or copper alloy. They are straight bead welded, bright-annealed and calibrated high quality steel tubing. For easier identification and protection of tubes after installation, individual tubes are sheathed by PVC material of a different color. Extruded outer sheath has oil resistance, weather proof, flame-retardant, corrosion and acid resistant, physical/chemical protection.
Number of tubes: 1~9 tubes in a bundle
Standard length: 300m in a wooden reel