China heavy duty plywood calibration sanding machine, this heavy duty sanding machine is used to do the thickness calibration on the plywood board, sanding thickness based on the plywood thickness; +-0.5mm, this calibration sanding machine motor power: 75kw and 55kw, and sanding rollers installed by one angle, this way the calibration sanding results and performance will be more better, if you are needing heavy duty plywood calibration sanding machine, welcome to inquiry from geelong company.