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DEF is Liquid Urea solution used as a Diesel exhaust fluid for reduction of NOx concentration in the diesel exhaust emissions from diesel engines combustion. Diesel Exhaust Fluid Blue DEF is a crystal clear 30% - 32% aqueous solution of urea.
DEF Blue Diesel Exhaust Fluid Manufacturer
DEF Blue Diesel Exhaust Fluid Exporter
DEF Blue Diesel Exhaust Fluid Supplier