作者: Ryusuke Tada , Motoki Sato
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摘要: An apparatus for fracturing polycrystalline silicon having: a pair of rolls rotated in counter direction each other around parallel axes; and plurality teeth units provided on outer peripheral surfaces the rolls, arranged along circumferential have fixing covers which: has flanges; are formed as strips longitudinal which fixed state top ends protruded outward radially from hole so to hold flanges between rolls.