The angle of friction of this material is 30 degrees.

This surface has high friction, so it's hard to slip.

I watched that movie three times.

He was standing in the corner of the room.

What is this material made of?

Recently, trade friction between America and China has been intensifying.

Every morning, I tighten my body by doing dry rubbing.

The reindeer's antlers have a beautiful shape.

Mr. Kaku is my best friend.

His car is shaped like a horn.