Hello,
I recently bought the GGTS Old 4in1 Cap Old Brass Alloy, GGTS Old 4in1 Cap Brass Old Alloy
but I did not clear as to what are the internal parts.
Are these? (This is cap of aluminium,mine is brass. the same?)

How is this piece called and where can I find it?

Thanks to those who help me!
I recently bought the GGTS Old 4in1 Cap Old Brass Alloy, GGTS Old 4in1 Cap Brass Old Alloy
but I did not clear as to what are the internal parts.

Are these? (This is cap of aluminium,mine is brass. the same?)

How is this piece called and where can I find it?

Thanks to those who help me!

Last edited: