21. A small window in the face allows you to inspect the condition of the fusible metal link and pinpoint the malfunction. 22. The RV fridge fusible plug is a retroactive device which responds to a major failure mode that results in a fire. 23. At the end of the life of this massive star, a non-fusible iron core is formed from fusion ashes. 24. During World War II bismuth was considered a strategic material, used for solders, fusible alloys, medications and atomic research. 25. Prior to release, the lever ( A ) is held in the closed position by a fusible wire ( B ). 26. Each eye receives a similar, fusible image, with the exception of the line, allowing simultaneous perception to be observed. 27. TAL's Washington patent lawyer, Bradford Kile, said the adhesive was applied via a fusible tape about an inch wide. 28. Probably the easiest to recycle would be bismuth-containing fusible alloys in the form of larger objects, then larger soldered objects. 29. "' Solder "'(, ) is a fusible metal alloy used to create a permanent bond between metal workpieces. 30. The wire in an electrical fusible link is encased in high-temperature fire-resistant insulation to reduce hazards when the wire melts.