Titanium plates for glasses are divided into three categories, pure titanium, TC4 and Ｂ titanium 15333.
Pure titanium is divided into soft and hard boards, generally soft board is slightly more expensive than hard board. Soft board is generally required The hardness is 67--80, it can be stamped. The hardness of the hard board is generally 90-97. It can not be stamped and can only be cut by wire.
The 15333 titanium material used for high-end glasses frames is difficult to process.