Revolving handles:
1. Handle:
(1) Material: bakelite (KU).
(2) Surfaced process: black.
2. Spindle:
(1) Material: steel (ST).
(2) Surfaced process: zincing (ZI).
1. Hexagon hole. 2. Order no.: 1011-21-M6, 1011-21-M8, 1011-23-M8, 1011-23- M10, 1011-26-M8, 1011-26-M10, 1011-28-M10.