descale

With phosphate as the main composition, an optimum composition of cleaning agent that can degrease, descale and prevent rust has been determined.

摘要通过验确定了以磷酸为主油锈防锈“三合一”清洗最佳配比；

With phosphate as the main composition,the optimum composition of cleaning agentthat can degrease,descale and be untirust has been determined by experiment.

通过验确定了以磷酸为主油锈防锈“三合一”清洗最佳配比;