普通钢珠的英文

• plain ball

• 普通:    common; general; ordinary; p ...
• 钢珠:    steel ball; ball bearing; ba ...
• 普通钢:    commercial steel; common steel; general steel; ordinary steels; plain carbon steel; plain steels; simple steel; tonnage steel
• 普通钢板:    general steel plate
• 普通钢材:    common iron