With regards to the surface treatment, our crafts include nigrescence, phosphorization, zinc plating, dacromet, nickel plating and copper plating.
表面
有发黑、磷化、机械镀锌、达克
、镀镍、镀
等
艺。
；达克涂料With regards to the surface treatment, our crafts include nigrescence, phosphorization, zinc plating, dacromet, nickel plating and copper plating.
表面有发黑、磷化、机械镀锌、达克、镀镍、镀等艺。
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