Special alloy

It is possible to make superior optical frames by using the materials with superior feature.
Comparison of feature
elasticity cutting plasticity soldering price
Nickel titanium alloy
(Super elastic alloy)
 ~ ~ ~ ~
NZ-21 › ¢ › › ›
Co alloy › ¢ ¢ ¢ ¢
HiNi alloy ¢ › › › ›
Monel ~    
Nickel silver ~    
good›¢~bad