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کتاب Phenolic Resins: Chemistry, Applications and Performance - مرجع ...

2:25
YouTube > Entrepreneur India
Production of Phenolic Resins.
24:55
youtube.com > PaathShaaala
Phenol Formaldehyde Resin (PF Resin) || Some important Polymers || UG PaathShaala #PFResin
YouTube · PaathShaaala · 2.4万次播放 · 2021年5月1日

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