Aminzadeh finished in first place with 255kg and another Iranian powerlifter Mehdi Sayyadi stood in second place with 246kg in the men's +107kg weight category.
Earlier, Ali Akbar Gharibshahi and Saman Razi won the gold and bronze medals respectively in the men's -107 kg category.
The 2023 World Para Powerlifting Championships is being held in Dubai, United Arab Emirates from 22 to 30 August.
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