钢珠

Traditional form:

鋼珠

Pinyin (reading):

gāngzhū

Definitions:

• steel ball
• bearing ball

Characters:

• 钢 - steel; hard, strong, tough
• 珠 - gem, jewel, pearl, precious stone

Traditional characters:

• 鋼 - steel; hard, strong, tough
• 珠 - gem, jewel, pearl, precious stone