Copperized　oil-coupling　exhibits　excellent　anti-galling　performance,　but　because　of　the　economic　and　environmental　issues,　it　can＇t　be　widely　used　in　practical　uses.　A　new　method　with　good　anti-galling　performance,　lower　energy-needed　and　emission,　more　simple　and　inexpensive　coupling　method　for　corrosion　resistant　couplings　is　urgently　needed.　A　Nano-copper　Based　Composite　Anti-friction　Coating　(AFRICO),　which　is　the　mixing　of　the　high　concentration　of　nano-copper　suspension　as　the　basic　lubricant　with　some　PTFE　nano-particles　and　a　special　acrylic　resin　as　a　binder　is　presented　here　as　a　feasible　alternative　new　method.　The　full　scale　makeup　and　breakout　experiments　carried　out　on　the　non-API　high　grade　P110S,　N80S　and　TP95TS　oil　coupling　couplings　of　the　AFRICO　treated　separately　showed,　that　the　surfaces　of　the　thread　do　not　appear　any　obvious　galling　or　scratches.　That　means　the　copperized　couplings　can　be　replaced　by　the　AFRICO　treated　couplings　in　high　grade　steel　corrosion　resistant　oil-couplings.