Reaction initiators, reaction accelerators and catalytic preparations n.e.c. or included

381511 Catalysts, supported; reaction initiators, reaction accelerators and catalytic preparations, with nickel or nickel compounds as the active substance, n.e.c. or included 381512 Catalysts, supported; reaction initiators, reaction accelerators and catalytic preparations, with precious metal or precious metal compounds as the active substance, n.e.c. or included 381519 Catalysts, supported; reaction initiators, reaction accelerators and catalytic preparations, with an active substance other than nickel or precious metals or their compounds, n.e.c. or included 381590 Reaction initiators, reaction accelerators and catalytic preparations, unsupported, n.e.c. or included