Air Conditioner Aluminum Tubes, Brand Name : Grana, Length : ROLLS

Alloy & Temper:1060,1070,1050
Gas sealing:Filling with Ni gas (＞1.00Mpa),keep the pressure for at least 30 minutes, to see the pressure gauge with decreasing or not. No leakage is accepted.
Bending:Bending at 1800 by 25mm bending radius, there is no visible crack.
Flatting:Pressing tube to be flat (inner wall distance same as wall thickness), no visible crack to be found.
Cleaning:Clean the inner wall surface, without any pollution found, total impurity content remained 5~60mg/ m2
Tensile strength :72MPA
Elongation :30%