... hardness Non-standard OEM/ODM Hardware Precision electric power tool partsKey Specifications/Special Features:1,High ... quality precision electric tool parts for powder metallurgy part by ISO-9001system2,Durable powder metallurgy partApplicable ... copper sleeve,sleevebearing, bushing,bush,pulley,timing pulley,structural parts,powder metallurgy parts,nut,autoparts,rotor and statorElectric power tool part ...