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Surface

Definition

NO.1

The surface finished by heat treatment and pickling or processes
corresponding there to after hot rolling.

2B

Those finished, after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster.

NO.3

Those finished by polishing with No.100 to No.120 abrasives specified in JIS R6001.

NO.4

Those finished by polishing with No.150 to No.180 abrasives specified in JIS R6001.

HL

Those finished polishing so as to give continuous polishing streaks by using abrasive of suitable grain size

BA
(No.6)

Those processed with bright heat treatment after cold rolling.

Mirror
(No.8)

Shinning like a mirror