| 摘要 |
Device for mechanical pickling of the type consisting of a rotating disc 1 perpendicular to a drive shaft which has at its periphery axles perpendicular to its plane 1, characterised in that the disc comprises washers 12 mounted freely about the said axles 5-7, the inner diameter of the said washers 12 being greater than the largest dimension of the said peripheral axles 5-7 in the plane of the disc 1. <IMAGE>
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