We are a Water Treatment Company in the USA using 5000 cft(150,000 litres) of Ion Exchange Resin per year. Please Send Quote on FOB Shanghai basis for : 1)Strong Acid Cation Resin 8% DVB Crosslinked 20,000 litres 2) Strong Base Anion Resin Type I (DVB Crosslinked) 20,000 litres 3) Activated Carbon 18-40 Mesh 18,000 litres Please send product details and reference list of major users in the USA Thanks