ADVANCED ENGINEERING

chemicals containing disinfectants used to clean air conditioning units, refrigeration equipment, and ventilation ducts; chemical cleaning preparations used to clean air conditioning and refrigeration equipment containing industrial detergents

chemical cleaning preparations for the unblocking of drains and sinks and plugholes; fragrance gels used to emit fragrances in air conditioning and refrigeration systems

disinfectants for cleaning air conditioning units, refrigeration systems, and ventilation ducts