1
2
3
4
5
6
Subject (ZB):
“...graphite...”
7
Subject (ZB):
“...graphite...”
8
9
10
11
Subject (ZB):
“...graphite...”
12
13
14
15
16
Subject (ZB):
“...graphite...”
17
Subject (ZB):
“...graphite compound...”
18
19
20