Big InP ingots needed for any crystal growth company.
Brand new polycrystalline material VGF GaP.
Parts made of PBN can serve as self-supporting in aggressive chemical environments. Not destructure till high temperatures.
Crucibles made of PG are suitable for PG grids needed to control electron and ion beams.
Very inert to chemicals and stable at high temperatures.
Useful not only in crystal growth, but in many other industries and health sciences.