Sell gas flux(Rinse-free Flux & environmental

FB401L:only suitable for manual brazing for red copper in air conditioning fittings,refrigeration andother condensation equipments. FB402L:suitable for both manual andautomatic flame brazing for red copper and brass in air conditioning and refrigetation systems. FB403L:suitable for connection of air conditioning,condensation equipments,evaporative containers,changeable valve automatic flame brazing and other pipe brazing applications. FB404L:suitble for red copper pipes,iron pipes,air conditioning & refrigeration compressors,liquid separators,liquid refrigerant receivers etc. FB405L:suitable for bicycles,wheelchairs,radiator manufacturing industries etc.