Is emerald Jianzhan a raw material mineral glaze?

The sword lamp is made of iron tire glazed and fired at high temperature. The so-called glaze is made of natural ore, which is dried, weathered and polished into slurry, and then mixed with pure natural plant ash as solvent.

The concept of "non-raw ore" is not owned by Jianzhan, but the clay emphasized by the teapot. About four years ago, the concept of "non-raw ore" was introduced to build a station.

At present, 95% of the building lamps on the market are all right, and the probability of encountering so-called "non-raw ore" is very small.