ITEM NAME:Solder Wire Soldering Paste Flux Grease RMA-223 10cc Syringe Tube PCB BGA SMD AU.1 x 10cc Solder Paste. OEM RMA-223 solder paste is a new type of soldering paste that replaces traditional grease gel tape. RMA-223 avoids effectively the inconvenience of the trandition one in use, to help users improve production efficiency, product quality, and provide a rational and varied production process.