duble

Alloys of common metal; sheets and plates of metal; elbows of metal for pipes; pipes of metal; pipework of metal; chimneys of metal; chimney shafts of metal; rails of metal; flanges of metal [collars]; bottles [metal containers] for compressed gas or liquid air; containers of metal for storing acids; containers of metal [storage, transport]; containers of metal for compressed gas or liquid air; tanks of metal; compressed gas steel bottle and decompress valve. Synthetic tower (fertilizer manufacturing equipment); condensing tower; alkali scrubber; ammonia separating tower; sieve oil tower; carbanide compound tower; bath tower (term considered too vague by the International Bureau - Rule 13.2.b of the Common Regulations); sulfuric acid manufacturing equipment; pure alkali manufacturing equipment; synthesized alcohol facility; eletrolysis water hydrogen oxygen equipment (term considered too vague by the International Bureau - Rule 13.2.b of the Common Regulations); glycerin hydroxybenzene making equipment; coker; forestry chemistry equipment (term considered too vague by the International Bureau - Rule 13.2.b of the Common Regulations); boiler tubes [parts of machines]. Cooling installations for water; air driers [dryers]; air conditioning installations; air filtering installations; chimney flues; desiccating apparatus; gas scrubbing apparatus; drying apparatus and installations; heat accumulators; acetylene burners; acetylene generators; hot air ovens; hot air apparatus; cooling vats for furnaces; coolers for furnaces; boilers, other than parts of machines; water heaters; flare stacks for use in the oil industry; burners; heating apparatus; heat regenerators; heating apparatus for solid, liquid or gaseous fuels; heating apparatus, electric; distillation columns; distillation apparatus; heat exchangers, not parts of machines; evaporators; gas scrubbers [parts of gas installations]; incinerators; refining towers for distillation; water heaters [apparatus]; regulating accessories for water or gas apparatus and pipes; steam generating installations.