Coating:Zinc platingAnti-corrosion treatment:NSS(Salt Spray test) Surface finishing:DIN 4766-1 (Ra= 2µm)

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Coating:Zinc plating
Anti-corrosion treatment:NSS(Salt Spray test)
Surface finishing:DIN 4766-1 (Ra= 2µm)

涂层:镀锌
防锈处理:盐雾试验
表面处理:德国工业标准4766-1

use up用完 use sth up eg:Who has used up all the paper? run out完成 sth run out eg:Time is running out. tidy up yourself清理 take one