Concrete Admixture, Flame Retardant, Polycarboxylate Superplasticizer manufacturer / supplier in China, offering Sodium Sulfate Content 5% 18% Concrete Admixture Naphthalene Formaldehyde Superplasticizer CAS 9008-63-3, Fdn-a 5% Solid Content Naphthalene Superplasticizer for Self-Leveling Concrete CAS 9008-63-3, High Performance Fdn Concrete Admixture Naphthalene Superplasticizer for Tunnel Project CAS 9008-63-3 and so on.