... Polishing Machine for StoneHSMB-3800 Conuntertop profiling and polishing machineFeatures: 1) Model no.: HSMB-38002) Power of main motor: 4.5kw3) Grinding wheel ... work length: 3,150mm8) Drilling diameter: 6-100mm9) Machine dimensions: 3,800×1,650×1,450mm10) Gross weight:1 ... roller path, frequency conversion and variable speed, this machine with the characters of stable perfomance and high precision, ...