... certificate 2,cnc stone engraving machine 3,whole cast seamless weld steel structure 4,imported water cooling spindle Stone CNC Router JX- ... Water cooling constant torque spindle with imported bearing, high power, low tone4. Adopt Taiwan transducer with stable output ... , water proof, 5kw imported bearing water cooling spindle,4. Taiwan-made inverters, fully shielded, uneasy distorted cable, ...