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Dear Sir, We are factory specializing in the manufacturer and export of sodium lignosulphonate, calcium lignosulphonate for more than eight years. We have those products with high quality grade, and expressly, our price is very competitive because we are manufactory. Sodium lignosulphonate and calcium lignosulphonatecan be used as water reducer, concrete additive, (pottery, tile, brick)reinforcing agent, dispersant, bond , packing agent, dyestuffs dispersant , iron powder Adhesives, water-coal paste additives, oil drilling mud additives, stone material processing additives and so on Should any of these items be of interest to you, please let us know, We will be happy to give you details. Best regards. Andy Yu