Dear Sir Madam, My name is Saeed Ashrafi. To produce ceramic frit & glaze, we do use Boric acid. Up to now, we are using Turkish one & would like to know if you are able to supply us. I shall be waiting your kind response to be sent to me trough my below details. Tel: +98 21 2208 1685 B. Regards, Saeed Ashrafi