... issues can be discussed . 4. Sample:1, sample avalable2, Sample Time:5-7 days3, The sample charge will be refund after comfirm ... sodium, water electrolysis, as well as inorganic salt production, preparation of borax, chromium salt, potassium permanganate, phosphate, etc., ... quality and delivery time.2,Best & Professional service3,Fast sample,best price.4,Small quantity is welcomed (naoh)sodium ...