Permanent magnet electric roller explosion suppression performance safety protection device, self-checking method thereof and explosion suppression type permanent magnet electric roller
The invention relates to a permanent magnet electric roller explosion suppression performance safety protection device, a self-checking method thereof and an explosion suppression type permanent magnet electric roller. Explosion-proof joint faces are arranged between center plates of the permanent m...
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Format: | Patent |
Sprache: | chi ; eng |
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