चीन शंकु झाड़ी
The taperlock clamps supply all varieties of benefits. In addition to simple assembly and disassembly, a clamping box is usually value-efficient compared with 
other options. Typically, with a worn sprocket, t
he clamp can be reused.
Taper bushes types:
TB1008 TB3020
TB1108 TB3030
TB1210 TB3525
TB1215 TB3535
TB1310 TB4030
TB1610 TB4040
TB1615 TB4535
TB2012 TB4545
TB2517 TB5040
……….. और ना ही माप लेना याद रखना
Much insightful and useful research study regarding china taper bush can be located at http://www.hzpt.com/bushes1.htm.