Built-in nickel-titanium alloy spring

Built-in nickel-titanium alloy spring
All other parts are made of titanium alloy
Threadlocker is applied to all threaded connections ,so they will not come loose

Built-in nickel-titanium alloy spring

Built-in nickel-titanium alloy spring
All other parts are made of titanium alloy
Threadlocker is applied to all threaded connections ,so they will not come loose










