[Class : 6] Metal Hardware For Use In Pollution Control And Steel Manufacturing Equipments And Machines Included In Class 6.

[Class : 7] Machines, Equipment Instruments And Apparatus For Use In Steel And Pollution Control Industry Including Parts, Fittings And Accessories Thereof Included In Class 7

[Class : 11] Cooling And Heating Installations Including Furnace And Parts, Fittings And Accessories Thereof Included In Class 11.