Wave soldering process used in the production of printed circuit boards comprises using a lead-free solder having a lower melting point than a usual tin-lead solder, and a fluxing agent having no-clean properties
DE4032143A1
Gas resistor mounting for vehicle multi-stage blower - has plate that locates over aperture housing and latches in position
DE3621966A1
ELECTRIC HEATER, ESPECIALLY SOLDERING IRON
DE2311275A1
Soft soldering using flame contg. halo-organic cpd. - avoids need for using a flux
