Heat exchangers not being parts of machines; combined heat and power generators not being parts of machines; heat recovery apparatus not being parts of machines; air coolers; finned tube air coolers; heat exchange radiators not being parts of machines; heat exchange header boxes not being parts of machines; fin coil air conditioning units; plate heat exchanger units not being parts of machines; vehicle air conditioning condensers; vehicle air conditioning systems; shell and tube heat exchangers not being parts of machines; parts and fittings for all the aforesaid goods.

Design services in the field of heat exchangers; Industrial design services; custom industrial and engineering design services; engineering design services; product testing, analysis and evaluation services for others; industrial evaluation services; materials and product testing services; consultancy services relating to the aforesaid services.

Electrical apparatus and instruments, control apparatus and instruments, including telemetry and supervisory control sys tems; thermostats; valves included in Class 9

Valves and parts thereof, tubes, pipes and fittings therefor

Coolers and heaters for all fluids, including cooling radiators included in Class 11; heat exchanges included in class 11 evaporators and condensers; regulating and safety accessories for pipeline systems and installations and actuators for operating such accessories; filters included in Class 11, including electrofilters; auto desludge systems; installations and apparatus for ventilation for the purification of air, for the collection of dust, for the treatment of water and alluent and for the control of sludge, rotary feed valves and parts of all the aforesaid goods, being goods included in Class 11

Printed publications and printed matter

Power operated valves for the control of fluid flow, parts of such valves; including wrenches, mechanical actuating devices, power operated actuating devices, inter-coupling devices, interlocking devices,interlocking devices & lubricating devices, power actuators, for valves; heat exchangers (being of machines); cooling radiators (being parts of machines)for internal combustion engines

Parts, fittings and accessories for land, sea and aircraft included in Class 12

Motor driven electric current generators, having facilities for supplying low pressure hot water; heat exchangers for use with the aforesaid machines; parts and fittings includedin Class 7, for all the aforesaid goods

Heat exchangers, combined heat and power generators, heat recovery apparatus and parts and fittings therefor all included in class 11