Tube: Double wall, copper brazed
OD: 12.7mm, 0.5 inch
Wall: 1mm, 0.039 inch
Surface Finish: Original copper plating inside and outside
MFG Standard: ASTM A254
12.7×1 Copper Brazed Double Wall Steel Tubes
0.5″x0.039″/12.7×1 mm ASTM A254 Copper Brazed Double Wall Steel Tubes