As one of the oldest and most reliable Glass to Metal Seal Manufactures, Legacy Technologies (LTI) LLC has the unique experience coupled with our brand new state of the art facility located in Mission Kansas USA to provide the highest reliable hermetic seals in the industry. Although primarily known as the world's leading manufacturer of high reliability precision quartz crystal holders, LTI's wide range of Glass to Metal Seal capabilities have been used to design, develop, and manufacture products for many industries including aerospace, automotive, medical, military, telecommunications and sensor applications.