1,external diameter 0.5mm-50mm with tolerance to +/-0.01mm 2,Precision conerless grinding tolerance:+/-0.001 3,Meet ROHS&MEEE 1,we are professional manufacturer of varous lathing and stamping parts2,More than 10 years experience in this line3,ISO9001 and SGS certification4,Comply to ROHS,WEEE5,Produce to your drawing or sample6,We are the key supplier for many world famous companies turning parts ...