锌

• Galvanized welded steel pipe for low pressure service
  低压流体输送用镀锌焊接钢管
• Zinc , not more than 500 milligram daily
  锌，每天不超过500毫克硫辛酸，每天50毫克
• Specification for cast and wrought galvanic zinc anodes
  铸造和锻造镀锌阳极规范
• Mass calculation of coating for equal coating mm
  锌镀层质量两个相同锌镀层厚度