The

phot

ogra

phie

s and

tech

nica

l art

wor

ks a

re n

ot co

ntra

ctua

l. Th

e sp

ecifi

catio

ns o

f the

pre

sent

ed p

rodu

cts a

re o

pen

to m

odifi

catio

ns w

ithou

t pre

viou

s adv

ice.