1.Boric acid 99.6%min 2.manufacturer 3.accept small order 4.free sample Boric acidApplication of boric acid:1. boric acid in glass industry: Optical glass, Acid-resisting glass,Heat resistant glass, Glass fibre, improve the heat-resisting and transparency of glass, and increase the mechanical strength, and shorten the dissolve melting time;2. ceramic Industry: the main part of glaze, strengthen ...