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Roller Bridge Tune-o-Matic with m4 threaded posts Gibson Les Paul - Philadelphia Luthier Tools & Supplies, LLC
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Amazon.com: Musiclily Roller Locking Tune-O-Matic Guitar Bridge for Epiphone Les Paul SG Electric Guitar Replacement,Chrome : Musical Instruments
Can you send me some pictures, video, or deep explanations of how hinge, fixed, roller supports are constructed in a real bridge or in construction site? Are all the things real, or
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![File:Roller Bearing, Jensen Drive (Hill Street) Bridge over Buffalo Bayou, Houston, Texas 1310261116 (10577360794).jpg - Wikimedia Commons File:Roller Bearing, Jensen Drive (Hill Street) Bridge over Buffalo Bayou, Houston, Texas 1310261116 (10577360794).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/d/d7/Roller_Bearing%2C_Jensen_Drive_%28Hill_Street%29_Bridge_over_Buffalo_Bayou%2C_Houston%2C_Texas_1310261116_%2810577360794%29.jpg)