3810 Pickling preparations for metal surfaces, fluxes and other auxiliary preparations for soldering, brazing or welding, soldering, brazing or welding pastes and powders consisting of metal and other materials, preparations of a kind used as coatings or cores for welding electrodes or rods

3810 (01/1988-..) Pickling preparations for metal surfaces, fluxes and other auxiliary preparations for soldering, brazing or welding, soldering, brazing or welding pastes and powders consisting of metal and other materials, preparations of a kind used as coatings or cores for welding electrodes or rods 38101000 (01/1988-..) Pickling preparations for metal surfaces, soldering, brazing or welding pastes and powders consisting of metal and other materials 38109010 (01/1988-..) Preparations of a kind used as coatings or cores for welding electrodes or rods 38109090 (01/1993-..) Fluxes and other auxiliary preparations for soldering, brazing or welding (excl. preparations of a kind used as cores or coatings for welding electrodes or rods, soldering, brazing or welding powders and pastes consisting of metal and other materials, and welding electrodes or rods of base metals or metal carbides coated with fluxes) 38109091 (01/1988-12/1992) Fluxes for welding or soldering 38109099 (01/1988-12/1992) Auxiliary preparations of a kind used for welding or soldering (excl. pastes and powders consisting of metal and other materials, fluxes or flux-coated welding electrodes or rods of base metals or metal carbides, together with other coatings or cores for welding electrodes or rods)