This certification makes Rhein Laser the first Chinese company to gain FDA clearance for a thulium fiber laser, demonstrating that its products meet the highest global standards set by the U.S ...

Ultima Thule' took things one stage further - it was the farthest part of Thule. When thulium was named by Per Teodor Cleve in 1879, it was down to a slight misunderstanding of the meaning of thule.