Prepared binders for foundry moulds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included other: electroplating salts; water treatment chemicals; ion exchanger; correcting fluid; precipitated silica and silica gel; oil well chemical: water treatment chemicals, ion exchanger (inn) such as permiutits, zeolites)

73061019Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel – line pipe of a kind used for oil or gas pipelines : galvanised pipes : other

HSN Codes

84021200Steam or other vapour generating boilers (other than central heating hot water boilers capable also of producing low pressure steam); superheated water boilers – steam or other vapour generating boilers: water tube boilers with a steam production not exceeding 45 t per hour

84148090Air or vacuum pumps, air or other gas compressors and fans; ventilating or recycling hoods incorporating a fan, whether or not fitted with filters – other: other

84212110Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases – – filtering or purifying machinery and apparatus for liquids – for filtering or purifying water : ion exchanger plant or apparatus