... own factory. certificate:ISO formic acid is our strong item ,and have passed through ISO9001:2008Quality Management System Certification...Synonym: ... Deliming agent, Neutralizer etc.3, Printing and Dyeing Industry :Acid Stains etc.4, Chemical industry:Methane amide, DMF, Age ... etc.5, Rubber industry:Coagulation, etc.6, Steel industry:Acid cleaning of steel production, etc. 7, Paper industry:Pulp ...