Sodium Naphthalene Sulfonate Formaldehyde (Na2SO4 less 18%)

China Sodium Naphthalene Sulfonate Formaldehyde (Na2SO4 less 18%), Find details about China Naphthalene Sulfonate Admixture, Concrete Admixture from Sodium Naphthalene Sulfonate Formaldehyde (Na2SO4 less 18%)