... -Industry with the annual output of 500,000 tons for soda ash. high quality. best service. ISO:9001-2 1. ... Sodium Carbonate output is 500,000tons.2. Produced by Ying Cheng Chemical Co., LtdPackaging specification: 25Kg, 50Kg, 750Kg.3. Index of industrial ... bleaching, paper making, refined petroleum, metallurgy and other chemical industries. soda ash light,industrial grade - sodium carbonate-99.2%min