25
Gambar 2.5
HDPE (High-density polyethylene)
Gambar 2.6
PVC or V (Polyvinyl chloride)
Gambar 2.7
LDPE (Low density polyethylene)
Gambar 2.8
PP (Polypropylene)
Gambar 2.9
PS (Polystyrene)
Gambar 2.10
OTHER
Gambar 2.11
Kaca
Gambar 2.12
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