... powder high quality As the largest manufacturer, our chemicals are sold to Europe, America, Asia, Africa and so on. FOR our good quality ... B2O3, 3H2O), for white powder crystallization or three inclined shaft side flake crystallization, have satiny gloss, no odor. Handle Proportion 1.435 ... lined with plastic woven bag, net weight 50 kg. high quality and best price Boric acid for glass production use