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| Description: billiard balls that are made of phenol-formaldehyde (Bakelite) Materials Science and Engineering An Introduction Textbook, 7th edition by William D. Callister, Jr. Picture Stats: Views: 301 Filesize: 385.85kB Height: 364 Width: 550 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=30235 Keywords: Textbook, Chemical Engineering |