What type of metal is used for TT's discs?

As the title suggests, I want to know exactly what type of metal is used in Takara Tomy's discs.
Zinc alloy, the most common choice for diecast metal toys these days. This applies to the Weight Disks of Plastics and HMS, as well as the Metal Wheels, Metal Faces, and Chrome Wheels of MFB.
(Dec. 07, 2018  5:22 AM)Angry Face Wrote: Zinc alloy, the most common choice for diecast metal toys these days. This applies to the Weight Disks of Plastics and HMS, as well as the Metal Wheels, Metal Faces, and Chrome Wheels of MFB.

This is correct.
(Mar. 07, 2019  11:20 PM)omega263 Wrote: Stainless steel

This is wrong.

Closed now that it is answered Joyful_3