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,…