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 We are Ouhuang Engineering Materials (Hubei) Co., Ltd.Our company mainly produce and sell such as Sodium lignosulfonate,Calcium lignosulfonate,Naphthalene based superplasticizer,Sodium gluconate,Dispersing agent NNO/MF,Polycarboxylate superplasticizer,Sodium formate,Calcium formate,Calcium chloride dihydrate,Calcium chloride anhydrous,Sodium hexametaphosphate,Ammonium chloride,Hydroxypropyl methyl cellulos and ect.High-end product quality and sincere sales service are our tenets.We are willing to provide you with professional services in the areas we are familiar with and look forward to your consultation.. [More Information]