四分之一最高硬度的冷轧薄板 meaning in English

• quarter hard temper sheet

• 四分之一:    one fourth; quarte ...
• 最高:    highest; supreme; ...
• 硬度:    hardness; solidity ...
• 的:    4次方是 The fourth po ...
• 冷轧薄板:    flat cold-rolled s ...