ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/products/solder-paste/fluxplus-paste-flux
. There are five main categories in QQ-S-571E. Each is available with a variety of activity levels, physical qualities of their residue, and cleaning methods required
| https://pcbasupplies.com/sn100c-lead-free-bar-solder/
by Nihon Superior Sha Co., Ltd. and its licensees*, NT100Ge is a high-quality, low-cost alternative to silver-bearing solder. The eutectic tin-copper-nickel alloy creates a shiny, smooth, robust interconnect for a wide range of electronics assembly requirements
