Buy amorphous boron

Amorphous boron grade A, grade V, grade B99-A, magnesium polyboride, boron oxide, oxide, boric anhydride, boron carbide, boron carbide grinding material, silicon boride. We will purchase hexagonal boron nitride, boron mononitride, boron nitride 3, cyborite, cubonite, borazone, elbor, kingsonite, nitrogenous boron, polycrystalline boron PBK, consider other reagents with a delay and long storage.