Видео ютуба по тегу Engineering 739

739. Fire Prevention in High Risk Laboratory Environments | Heat Transfer | The Engineer Owl #heat
739. Fire Prevention in High Risk Laboratory Environments | Heat Transfer | The Engineer Owl #heat
Tsangkora Amp-733_739 (Version from Sakura AV-733 or 739)
Tsangkora Amp-733_739 (Version from Sakura AV-733 or 739)