73000525
Sep 10, 1973
Jan 28, 1975
FLUXES FOR WELDING, BRAZING AND SOLDERING; LIQUID SURFACE CLEANERS FOR METALS TO BE WELDED; LIQUID MASKING COMPOUND FOR PROTECTING METAL SURFACES, FROM WELDING SPATTER AND HEAT DISCOLORATION; A HEAT BARRIER COMPOUND IN THE FORM OF A HEAT-RESISTANT PLASTIC PUTTY
Chemicals