planishing roll

名词 n.
中文释义

英文释义

名词 n.
  1. One of the rolls between which metal strips are passed while cold, to bring them to exactly the required thickness as part of coin manufacture.
    — Planishing can also be employed where a limited shaping operation is required and where the surface is to be altered or improved . It is also possible to use planishing rolls in sheet metal operations, where again a limited amount of work hardening will be applied

词形变化

planishing rolls plural
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