USE For the manufacture of cobalt protoxide, and the painting of cobalt pigments, cobalt salts, enamels.
用途用于制造氧化亚钴, 钴颜料, 盐, 器着色。
The iron head is made of zincalloy, whose surface undergoes particular nickel protoxide spraying to enhance its quality.
铁头采用锌合金材料，铰链表面独特喷砂亚镍增强质感。
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