This unit process represents the production/service of 1JPY of stamped and pressed aluminium and aluminium alloy products ,in Japan created from statistical information and other sources.
This is a 4 digit product classification process that mixes all the products and services included in this classification.
Of mechanical parts which are pressed, parts which are pressed only are classified as <255111> those parts that are processed by milling, piercing, polishing after pressing are classified as parts, fittings and accessories respectively.However, <2551> does not concern, if there is machine processing after pressing.