titanium welding wire How to distinguish between pure titanium frame

1 Check the weight.
2 Check magnetic reflection.
3 Check the hinge structure .
4 with a chemical titanium welding wire reagent checked.
5 Test conductive index .
We can be a magnet placed on the table , then leaned over the frame , if it is not generating the magnetic response of titanium frames . Also check its hinge , titanium glasses are placed two plastic or metal liner in the hinge , in addition , because of different metals with different electrical conductivity , so with conductive index can be measured whether the titanium metal .
Now consumers in addition to care about aesthetics , but also pay great attention to security , such as European countries have regulations, things come into contact with human skin items titanium wires ( such as glasses , watches , necklaces , etc. ) , if necessary ingredient containing nickel marked . Because the nickel whites sometimes cause skin lesions or skin cancer , so manufacturers and stores have a duty to inform .