... machining 4.Tolerance:+/-0.05mm high quality cnc machining superior brass bushing Our Advantages :Over 12 years experienceHigh quality control,Competitive price ... range: 510mm*1020mm*500mm Our OEM Serivce : 1) Material:Steel, Brass, Copper, Stainless steel, Plastic, Aluminium POM, Delrin, Titanium Alloy etc ...