... it's comfortable to wear,passed EN13034,EN530... Drago Anti-acid&alkali coverall: Fabric information:Fiber composition: 100% cotton, ... standard 90%, reach the national standard GB12012-89. Anti-acid&alkali fabrrics mainly used for the chemical industry, metallurgy ... geology, electroplating, printing and dyeing, paper making industries and acid-base, chemicals made contact with the types of protective ...