If you mean the cone inside the speaker - they're usually made of cardboard. It's light enough to move when the speaker is in use - yet strong enough to support the speakers coil assembly.
does this mean the denture material is soft?”
This material is very soft.
nucleus
· insulation · in-wall speakers
A soft bottle is usually a recycled material or green bottle.
· insulation · in-wall speakers
· insulation · in-wall speakers
A good glue you can use for soft plastic which is a flexible material is Gorilla Glue.
Yes, there are sweatshirst where the material doesn't allow fuzz and knots to form on the material.
it is made of... material soft smooth material.
· insulation · in-wall speakers
The softest material in the mohs scale is talc