1) Application for sea-port,salina,tunnels, subway where has sulfate, magnesium salt, chloride. 2)anti-corrosive for steel bars We are professional factory on superplasticizer , we produce naphthalene based, polycarboxylate based, alphtic based superplasticizers, also, with naphthalane based superplasticizer, we produce set retarding superplasticizer, anticorrosize superplasticier, earlystrength ...