Ball valves are used in almost every process in engineering where flow control is a requirement. Its invention and development has been on for decades and even as of today, the basic design and principle of this instrument of flow control ...
After a decade dedicated entirely to invention and development of new mechanisms for tourbillon watch complication, Greubel Forsey stunned the watchmaking world with a new artwork – the reinterpreted GMT watch indicating a second time ...
Tags: invention and development, new mechanisms, tourbillon watch complication