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pen - Coggle Diagram
pen
analysis
ink
ink types
fast drying
wate rproof
gel
colours
RGB ,others
refill
amount
cap
body
nib
ball
grip
materials
plastic
rubber
metal
context
art
writing
display
hand
palm
ergonomics
users
categories
age groups
fingers
book
paper
Tree
environment
planet
company
production
assembly line
automated
manual
mould making
time for each cycle
automated