formic acid: 1.Formic acid 85%,90% 2.formic acid for Rubber, medical, printing... 3.formic acid: HCOOH 4.ISO/SGS/COA FORMIC ACID 1. ... industry: Tanning agent, Deliming agent, Neutralizer etc.3, Printing and Dyeing Industry :Acid Stains etc.4, Chemical industry:Methane amide, DMF ... etc.5, Rubber industry:Coagulation, etc.6, Steel industry:Acid cleaning of steel production, etc.7, Paper industry:Pulp ...