free from chemical treatments or additives
anti-corrosion additives
[机] 耐蚀附加剂
anti-oxidation additives
[机] 抗氧化附加剂
coating additives
[化] 涂料助剂
feed additives
[化] 饲料添加剂
food additives
[化] 食品添加剂
grinding additives
[化] 研磨辅料; 磨料; 研磨剂
oil additives
[化] (复)油的添加剂