[Class : 11] Tank Blanketing, Venting And Gas Regulating Apparatus / Installations Tank Blanketing Systems And Apparatus For The Inerting, Regulation And Control Of Fluids And Gases In Tanks And Storage Installations; Breather Valves, Pressure Vacuum Relief Valves And Emergency Relief Vents For Tanks And Storage Installations; Blanketing Pressure Regulators And Gas Blanketing Regulating Apparatus; Flame Arresters For Gas Pipes, Vent Lines And Installations; Apparatus And Installations For The Supply, Distribution, Regulation And Control Of Air, Nitrogen, Hydrogen, Dry Hydrogen Chloride (H Cl) Gas, Ammonia And Other Industrial Gases; Pressure Regulating And Safety Accessories For Gas Apparatus, Pipes And Installations; Valves [Other Than Parts Of Machines] For Regulating The Flow Of Liquids And Gases; Y Strainers And Basket Strainers [Other Than Parts Of Machines]; Parts, Fittings And Accessories For All The Aforesaid Goods.