It is a quiz app that answers the identification color of the steel type.
The question of answering the material from the steel color,
There are two types of questions that answer the identification color from the material.

[Answer the identification color]
Displays the type of steel material.
When you tap the button, the color changes, so answer the color of the displayed steel material.

[Answer the steel type]
The identification color is displayed.
Since the answer is displayed in 4 choices, answer the steel type corresponding to the identification color.

Would you like to work for an architectural company, a steelmaking company, a steelworks, an ironworks, etc., or get a qualification related to building steel such as steelwork management?