working principle of pnumatic grinding machine
IS 7157 (1987): Portable Pneumatic Grinding Machines. 2.4 Portable Grinding Machine Grinding machine designed to be held, and operated while being held, in the operator's hands during its normal working. 2.4.1 Straight type portable grinding machine Grinding machine with the spindle of the wheel in line with the handle and the grinding action done by …
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