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| View Original: | PBT chemica struc.svg (584x301) | |||
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| Courtesy of: | commons.wikimedia.org | More Like This | ||
| Keywords: PBT chemica struc.svg en Chemical structure of en Polybutylene terephthalate Poli tereftalanu butylenu own Polimerek 2008-06-16 Polyesters Terephthalate esters | ||||
