Bundy tube diameter 4.76mm, thickness 0.71mm; Low carbon wire diameter 1.2mm – 1.6mm; Electrical Dipping paint, thickness 10-25 micrometer, black; Rubber parts protection for the tube end; Dry nitrogen in the tube; Bundy and wire step can adjust according customers requirement; Plastic part protected or not for the end of the wire; Inner cleanness can meet CFC or R134a; Used for Refrigerator and show case