... , --drilling 1.Name: HFB300 Muti-function bridge stone processing machine2.product introduction :this machine is adopted the most advanced technology both ... to all kinds of complex,difficult and high quality stone products .3.product parameters: ModelHFB300HFB400HFB500HFB600voltage220v,380v,400v,415vdiameter of blade 300mm400mm500mm600mmZ axes ...