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、机械锌、达克罗、镍、等工艺。

Used AgNO3 Standard solution to measure the content of mercapto heterogeneous ring compound and thioureido derivative in acid coppering gloss agent continuously by potentiometric titration.

以硝酸银标准溶液，采用电位滴定法，连续测定酸性充剂中的巯基杂环化合物和硫脲衍生物的含量。

The product has red dumet wire, pale (golden yellow) dumet wire, white dumet wire, no B dumen wire and luminous (is moisture-proof) dumet wire etc.

先进的表面（或）技术使杜美表面状态呈均匀的砖红色或黄色等。产品有红杜美、（黄）色杜美、白杜美、无硼杜美和亮（防潮型）杜美等。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸、硫酸亚锡、络合剂、稳定剂等组成的溶液中,可以置换覆不同锡质量分数的- 锡合层,其工艺可替代氰化物预,消除氰化物污染,是实现电清洁生产措施之一。

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、机械镀锌、达克罗、镀镍、镀铜。

Used AgNO3 Standard solution to measure the content of mercapto heterogeneous ring compound and thioureido derivative in acid coppering gloss agent continuously by potentiometric titration.

以硝酸银标准溶液，采用电位滴定法，连续测定酸性镀铜光充剂中的巯基杂环化合物和硫脲衍生物的含量。

The product has red dumet wire, pale (golden yellow) dumet wire, white dumet wire, no B dumen wire and luminous (is moisture-proof) dumet wire etc.

先进的表面镀铜（或铜）技术使杜表面状态呈均匀的砖红色或黄色。产品有红杜、淡（金黄）色杜、白杜、无硼杜和光亮（防潮型）杜。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸铜、硫酸亚锡、络合剂、稳定剂组成的溶液中,可以置换镀覆不同锡质量分数的铜- 锡合金镀层,其可替代氰化物预镀铜,消除氰化物污染,是实现电镀清洁生产措施之一。

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、机械镀锌、达克罗、镀镍、镀铜等工艺。

Used AgNO3 Standard solution to measure the content of mercapto heterogeneous ring compound and thioureido derivative in acid coppering gloss agent continuously by potentiometric titration.

以硝酸银标准溶液，采用电位滴定法，连续测定酸性镀铜光充剂中巯基杂环化合和硫脲衍含量。

The product has red dumet wire, pale (golden yellow) dumet wire, white dumet wire, no B dumen wire and luminous (is moisture-proof) dumet wire etc.

先进表面镀铜（或铜）技术使杜美丝表面状匀砖红色或黄色等。产品有红杜美丝、淡（金黄）色杜美丝、白杜美丝、无硼杜美丝和光亮（防潮型）杜美丝等。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸铜、硫酸亚锡、络合剂、稳定剂等组成溶液中,可以置换镀覆不同锡质量分数铜- 锡合金镀层,其工艺可替代氰化预镀铜,消除氰化污染,是实现电镀清洁产措施之一。

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、机械镀锌、达克罗、镀镍、镀铜等工艺。

Used AgNO3 Standard solution to measure the content of mercapto heterogeneous ring compound and thioureido derivative in acid coppering gloss agent continuously by potentiometric titration.

以硝酸银标准溶液，采用电位滴定法，连续测定酸性镀铜光充剂中杂环化合物和硫脲衍生物含量。

The product has red dumet wire, pale (golden yellow) dumet wire, white dumet wire, no B dumen wire and luminous (is moisture-proof) dumet wire etc.

先进表面镀铜（或铜）技术使杜美丝表面状态呈均匀砖红色或黄色等。有红杜美丝、淡（金黄）色杜美丝、白杜美丝、无硼杜美丝和光亮（防潮型）杜美丝等。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸铜、硫酸亚锡、络合剂、稳定剂等组成溶液中,可以置换镀覆不同锡质量分数铜- 锡合金镀层,其工艺可替代氰化物预镀铜,消除氰化物污染,是实现电镀清洁生措施之一。

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、机械镀锌、达克罗、镀镍、镀铜工艺。

Used AgNO3 Standard solution to measure the content of mercapto heterogeneous ring compound and thioureido derivative in acid coppering gloss agent continuously by potentiometric titration.

以硝酸银标准溶液，采用电位滴定法，连续测定酸性镀铜光充剂中的环化合物和硫脲衍生物的含量。

The product has red dumet wire, pale (golden yellow) dumet wire, white dumet wire, no B dumen wire and luminous (is moisture-proof) dumet wire etc.

先进的表面镀铜（或铜）技术使杜美丝表面状态呈均匀的砖红色或黄色。有红杜美丝、淡（金黄）色杜美丝、白杜美丝、无硼杜美丝和光亮（防潮型）杜美丝。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸铜、硫酸亚锡、络合剂、稳定剂组成的溶液中,可以置换镀覆不同锡质量分数的铜- 锡合金镀层,其工艺可替代氰化物预镀铜,消除氰化物污染,是实现电镀清洁生措施之一。

With regards to the surface treatment, our crafts include nigrescence, phosphorization, zinc plating, dacromet, nickel plating and copper plating.

面处理有发黑、磷化、机械镀锌、达克罗、镀镍、镀铜等工艺。

Used AgNO3 Standard solution to measure the content of mercapto heterogeneous ring compound and thioureido derivative in acid coppering gloss agent continuously by potentiometric titration.

以硝酸银标准液，采用电位滴定法，连续测定酸性镀铜光充剂中巯基杂环化合物和硫脲衍生物含量。

The product has red dumet wire, pale (golden yellow) dumet wire, white dumet wire, no B dumen wire and luminous (is moisture-proof) dumet wire etc.

先进面镀铜（或铜）技术使杜美丝面状态呈均匀砖红色或黄色等。产品有红杜美丝、淡（金黄）色杜美丝、白杜美丝、无硼杜美丝和光亮（防潮型）杜美丝等。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸铜、硫酸亚锡、络合剂、稳定剂等组液中,可以置换镀覆不同锡质量分数铜- 锡合金镀层,其工艺可替代氰化物预镀铜,消除氰化物污染,是实现电镀清洁生产措施之一。

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。

Used AgNO3 Standard solution to measure the content of mercapto heterogeneous ring compound and thioureido derivative in acid coppering gloss agent continuously by potentiometric titration.

以硝银标准溶液，采用电位滴定法，连续测定性铜光充剂中的巯基杂环化合物和脲衍生物的含量。

The product has red dumet wire, pale (golden yellow) dumet wire, white dumet wire, no B dumen wire and luminous (is moisture-proof) dumet wire etc.

先进的表面铜（或铜）技术使杜美丝表面状态呈均匀的砖红色或黄色等。产品有红杜美丝、淡（金黄）色杜美丝、白杜美丝、无硼杜美丝和光亮（防潮型）杜美丝等。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由铜、锡、络合剂、稳定剂等组成的溶液中,可以置换覆不同锡质量分数的铜- 锡合金层,其工艺可替代氰化物预铜,消除氰化物污染,是实现电清洁生产措施之一。

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、机械镀锌、达克罗、镀镍、镀等工艺。

Used AgNO3 Standard solution to measure the content of mercapto heterogeneous ring compound and thioureido derivative in acid coppering gloss agent continuously by potentiometric titration.

以硝酸银标准溶液，采用电位滴定法，连续测定酸性镀光充剂中的巯基杂环化合物和硫脲衍生物的含量。

The product has red dumet wire, pale (golden yellow) dumet wire, white dumet wire, no B dumen wire and luminous (is moisture-proof) dumet wire etc.

先进的表面镀（）术使杜美丝表面状态呈均匀的砖红色黄色等。产品有红杜美丝、淡（金黄）色杜美丝、白杜美丝、无硼杜美丝和光亮（防潮型）杜美丝等。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸、硫酸亚锡、络合剂、稳定剂等组成的溶液中,可以置换镀覆不同锡质量分数的- 锡合金镀层,其工艺可替代氰化物预镀,消除氰化物污染,是实现电镀清洁生产措施之一。

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、机械镀锌、达克罗、镀镍、镀铜等工艺。

Used AgNO3 Standard solution to measure the content of mercapto heterogeneous ring compound and thioureido derivative in acid coppering gloss agent continuously by potentiometric titration.

以硝酸银标准溶液，采用电位滴定法，测定酸性镀铜光充剂中的巯基杂环化合物和硫脲衍生物的含量。

The product has red dumet wire, pale (golden yellow) dumet wire, white dumet wire, no B dumen wire and luminous (is moisture-proof) dumet wire etc.

先进的表面镀铜（或铜）技术使美表面状态呈均匀的砖红色或黄色等。产品有红美、淡（金黄）色美、美、无硼美和光亮（防潮型）美等。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸铜、硫酸亚锡、络合剂、稳定剂等组成的溶液中,可以置换镀覆不同锡质量分数的铜- 锡合金镀层,其工艺可替代氰化物预镀铜,消除氰化物污染,是实现电镀清洁生产措施之一。