Metal frame
C : chrome-plated frame
A : metallize light grey frame
G : metallize dark grey frame
N : metallize black frame

Seat
101 : natural beech seat
102 : walnut coloured seat
201 : black leather coated seat
202 : grey leather coated seat
203 : jellow leather coated seat
204 : brown leather coated seat
210 : alluminium leather coated seat