Material development of titanium

1 . Full titanium : Frame in addition to the screws and plastic gloves for outside , all metal parts made of titanium material .
2 . Nickel titanium package : Borders titanium material, grade 2 titanium wire  the surface material using a nickel package , and now this frame no longer exists.
3 . Assembled Titanium: Due to the high cost of production of nickel and titanium package to update the device , it is not updated before , assembled titanium frames as the situation , but this product is dangerous because each metal has a different melting point, literally Putting it together will be very fragile. Early nickel- titanium frame thin titanium sheet package passes flattened angle , it 's not like a factory original border distribution of production so mean , so after use , nickel, and titanium -coated layer that will break out and no way to weld repair , titanium also includes assembling such a situation .
4 . Nickel-plated titanium : In order to reduce costs, make it easier on the production, but also come up with a factory nickel plated titanium . So then processed using conventional welding techniques .