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2015

2015

(Summary description)Passed the ISO TS16949 automobile production parts and related maintenance parts organization management system certification.

2015

2015

2015

2015

(Summary description)Passed the ISO TS16949 automobile production parts and related maintenance parts organization management system certification.

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Passed the ISO TS16949 automobile production parts and related maintenance parts organization management system certification.

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Progold

Progold Showcases Master Alloys and Electroplating Technology, Creating New Collaboration Opportunities at Hong Kong Jewellery Show

From September 18 to 22, the 2024 September Hong Kong Jewellery & Gem Fair successfully concluded its five-day event. As one of the world's most influential jewelry exhibitions, it attracted jewelers,
2024-09-24
Ultra

Ultra Union and Progold Join Forces, Successfully Concluding the 24th Shenzhen International Jewelry Exhibition

On September 18, 2024, the 24th Shenzhen International Jewelry Exhibition successfully came to a close. This five-day event attracted top jewelry brands, suppliers, and designers from around the world
2024-09-20
Exhibition

Exhibition News: Progold to Shine at the Shenzhen International Jewelry Fair

As we welcome the refreshing breeze of a new season, let us embark on a journey through the beautiful autumn. The highly anticipated 2024 Shenzhen International Jewelry Exhibition will be grandly held from September 14 to September 18 at the Shenzhen Convention and Exhibition Center in Futian. Being a leader in the Italian jewelry manufacturing industry, Progold looks forward to gathering with jewelry enthusiasts, professionals, and industry partners from around the world to showcase its outstanding products and technologies.
2024-09-02
How

How to achieve environmentally friendly chromium-free passivation of aluminum alloys and other metals

In the passivation treatment process of aluminum alloy surface, countless researchers have done in-depth research. At present, the passivation treatment method of chromate is widely used in the market. The passivation effect of this kind of heavy metal passivation process is acceptable, but it has serious environmental pollution, especially the passivation method such as the use of hexavalent chromium passivation agent, which is also very toxic. In view of this situation, research on chromium-free passivation has also been carried out. Now there are chromium-free passivators that have been put into production. Then, how to achieve the environmental protection of aluminum alloy and other metals without chromium passivation?
2023-03-16
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