... quailty,it's comfortable to wear,passed EN13034,EN530... Drago Anti-acid&alkali coverall: Fabric information:Fiber composition: 100% cotton, ... and smaller changes can withstand strong pressure acid . "Drago" anti-acid&alkali fabric, the properties reached 97.5%, higher ... national standard 90%, reach the national standard GB12012-89. Anti-acid&alkali fabrrics mainly used for the chemical industry, ...