With regards to the surface treatment, our crafts include nigrescence, phosphorization, zinc plating, dacromet, nickel plating and copper plating.
表面处理有发黑、磷化、机
、达克罗、镍、铜等工艺。
铜With regards to the surface treatment, our crafts include nigrescence, phosphorization, zinc plating, dacromet, nickel plating and copper plating.
表面处理有发黑、磷化、机、达克罗、镍、铜等工艺。
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