24-03-29
How many categories of superplasticizers are there in the world at present? What are their respective characteristics?
superplasticizer, calcium lignin sulfonate, sodium lignin sulfonate, magnesium lignin sulfonate, naphthalene-based superplasticizer, melamine superplasticizer, polycarboxylate superplasticizer, aliphatic superplasticizer, aminosulfonate superplasticizer, China superplasticizers s