JB/T 9905.3-2006 External cylindrical centerless grinding machines—Parameters has been changed from GB/T 6470-2004 External cylindrical centerless grinding machines-Parameters.
JB/T 9905.3-2006 External cylindrical centerless grinding machines—Parameters was changed to JB/T 13678.1-2019 Centerless Cylindrical Grinder Part 1: Types and Parameters.
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