[Class : 40] Treatment Of Material, Recycling Of Waste And Trash, Air Purification And Treatment Of Water, Water Waste Treatment, Treatment Of Effluent, Industrial Treatment Of Effluent, Sewage Treatment Services, Food And Drink Preservation, Treatment And Coating Of Metal Surfaces, Coating And Surface Finishing Of Machines And Tools,
Electro And Metal Coating, Metal Treating And Casting, Hardening Of Metal And Metal Products.