铜锡合金代镍电镀工艺的研究进展 关键词： 电镀；铜锡合金；代镍 [gap=306]Key words： Electroplating；Cu—Sn alloy；Nickel substitute
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The lead-free nickel free white and bright nickel substitute plating process…bright nickel substitute tin salt 30g 666 lead-free nickel free white and …
批发采购电镀助剂-供应666无铅无镍光亮厚白铜锡（电镀助剂）批发…
It's emphasized upon technology research for nickel saving and nickel substitute plating in the electroplating industry in order to lower consumption of nickel material.
为了减少镍的用量，电镀行业十分重视对节镍、代镍电镀工艺的研究。
Seabed manganese nodules contain a great deal of metallic elements such as manganese, iron, copper, cobalt and nickel, and they were thought as an important substitute resource for land ore.
海底锰结核中含有大量的锰、铁、铜、钴、镍等金属元素，被公认为是一种重要的陆地矿产替代资源。
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