https://youtu.be/p5EhSpZ3cug?si=pVw5Fie7KkeRoe9Y
If you're a gear enthusiast, you probably know Pandapodium, a specialist shop for Chinese-made parts.
The YouTuber was invited to Fibertek Factory, located in Xiamen, which specializes in OEM/ODM, and this is a video introducing the manufacturing process.
In this video, unlike other videos, EPS foam and latex foam, methods using air, various threading on molding, positioning techniques,
and methods of using glue are roughly introduced~
Which brands they supply to is confidential, just like other videos,
and it includes high-end products that we know of.
(Usually rare frames are made here and sent to the respective country for finishing and painting)
For reference, Xiamen has many of the largest specialized OEM/ODM factories in China,
among them, Passport Sports, Winspace, Elite Wheel, Eliii, Cybray, EXS, etc. are representative examples.
(This region likely developed because it is closest to Taiwan)