18Notes on UsageMaterial list■ Main unitPart Material Surface treatmentDisplay (Touch panel) Glass -Exterior case (side,top, bottom)Aluminum Anodic oxidationtreatmentSlit (top, bottom) PBT-GF45% -au IC card/microSDmemory card trayPC Laser printingau IC card/microSDmemory card tray(side)Aluminum Anodic oxidationtreatmentRear panel Glass Film laminatingPower key, Volumekey, Bixby keyAluminum Anodic oxidationtreatmentReceiver/speaker Aluminum Anodic oxidationtreatment, waterrepellent coatingFingerprintrecognition sensor(surrounding area)Aluminum Anodic oxidationtreatmentFingerprintrecognition sensor(center area)Primer UV coatingRear camerasurrounding areaAluminum Anodic oxidationtreatmentRear camera lenspanelGlass Black printingUSB Type-Cconnection terminalCorson Alloy Gold platingUSB Type-C connectionterminal (surroundingarea), Headsetconnection terminal(surrounding area)PBT-GF45% -Part Material Surface treatmentHeadset connectionterminalCopper + Titanium Nickel plating andGold platingSpeaker PBT-GF45% -■ SC TV Antenna Cable 04Part Material Surface treatmentHeadset connectionterminal (metal part)Brass Nickel plating andGold platingHeadset connectionterminal (exterior),Plug (exterior)LDPE, TPE -Cable TPE -Plug (metal part) Brass Nickel plating andGold platingPlug (resin part) LDPE, TPE -■ AKG Tuning High-quality Earphone with Microphone(sample)Part Material Surface treatmentPlug (metal part) Copper, Nickel Nickel platingPlug (outer covering) TPE Corrosion treatmentCable (string) Polyester Water repellent coatingCable junction TPE Corrosion treatmentCable control ring TPE Corrosion treatmentCable TPE -Switch PC UV coating, HBtransparent primertreatmentEarphone speakerpartTPU Discharge corrosiontreatmentEarphone outercoveringPC UV coating, HBtransparent primertreatment