Question

it is face of wood material?

Lacquer

Linseed-oil

Stain

Shellac
copal gum​

Answer 1

Answer:

Metals, especially silver, are good electrical conductors. Copper is cheaper than silver, so it is made into millions of miles of electrical wiring every year. Materials like glass and plastic are poor electrical conductors, and are called insulators

Answer 2

Shellac is face of wood material.