Sawamon-fu played an important role in Japanese history.

Sawamon Saburo is my best friend.

King Ashoka was a great king of India.

This butterfly valve is used to control the flow of fluid.

Diseases of the mitral valve greatly affect the function of the heart.

This check valve has the role of preventing water from flowing backwards.

He is good at multiplication.

We need to pay our accounts payable as soon as possible.

Our company's accounts receivable is currently one million yen.

The ribbon seal is a beautiful seal that lives in the Arctic Ocean.