正信 List of Products and Services

At Seishin Co., Ltd., we offer "zinc plating" with a monthly processing capacity of 500 tons. We achieve high quality through a consistent line from pretreatment to drying. We can accommodate steel plates and checkered plates up to 5×10 sizes, and base plates can be processed up to a maximum of 1000 kg. We also cater to long products and large components for construction materials and equipment parts. 【Features】 ■ Monthly processing capacity of 500 tons ■ One of the largest lines in western Japan ■ Effective dimensions: W600×H1500×L6800 ■ Steel plates and checkered plates up to 5×10 sizes ■ Base plates can be processed up to a maximum of 1000 kg *For more details, please refer to the PDF document or feel free to contact us.

• Steel
• Secondary steel products

At Seishin Co., Ltd., we offer "Glossy Tin Plating" characterized by a production line with a processing capacity of 160 tons per month. With the introduction of a hoist, we can perform plating on standard copper strips of 3m, 2.5m, and 2m. We respond quickly to delivery requests for both standard and processed products, primarily for busbars. Additionally, we also provide "Matte Tin Plating" for electrical and electronic components with excellent solder wetting properties. 【Features】 ■ Effective dimensions: W300×H700×L3100 ■ A production line boasting a processing capacity of 160 tons per month ■ Quick delivery response for both standard and processed busbars ■ Plating on standard copper strips of 3m, 2.5m, and 2m is possible with the introduction of a hoist *For more details, please refer to the PDF document or feel free to contact us.

• Steel
• Secondary steel products

We would like to introduce our "Large Zinc Line." We can handle steel plates and checkered plates up to 5×10 size. The base plates can be processed up to a maximum of 1000 kg. We also have a storage area for finished products within the factory, capable of storing up to 200 tons. We can accommodate large trailers for loading and unloading products even in rainy weather. 【Features】 ■ Monthly processing capacity of 500 tons ■ One of the largest lines in western Japan ■ Suitable for construction materials and equipment parts such as long products and large components ■ Effective dimensions: W600×H1500×L6800 ■ Achieving high quality through a consistent line from pretreatment to drying *For more details, please refer to the related link page or feel free to contact us.

• Steel
• Secondary steel products

We would like to introduce our "Hoist-type Glossy Tin Line." Copper strips (standard products) can be processed up to 3m in length. With the new hoist installation, we can handle heavy items exceeding 60kg. The coatings obtained from electroplating at our company come in a non-glossy milky white type and a glossy silver-white type. We excel in plating for busbars related to panels, utilizing decorative and anti-corrosion properties, as well as electrical and physical characteristics. 【Features】 - Boasts a monthly processing capacity of 160 tons due to the new hoist line - One of the largest lines in western Japan - Capable of processing from busbar products to connection terminals, with standard copper strip lengths up to 3m - Quick turnaround times - Effective dimensions: W300×H700×L3100 *For more details, please refer to the related link page or feel free to contact us.

• Steel
• Secondary steel products

"Magstrong" is a highly corrosion-resistant chemical treatment effective for rust prevention and the formation of a paint base on magnesium alloy components. It does not use chromium, which is regulated under European directives. Additionally, due to its excellent corrosion resistance, it can also be applied to components that require corrosion resistance. We can accommodate low-resistance types upon request. 【Features】 ■ Non-chromium / Does not use chromium regulated under European directives ■ High corrosion resistance / No corrosion after 96 hours in salt spray test ■ Surface resistance / Insulating properties * Can accommodate low-resistance types upon request ■ Paint adhesion - Primary adhesion: No peeling in grid test (100/100) - Secondary adhesion: No peeling in hot water immersion test (100/100) * For more details, please refer to the PDF document or feel free to contact us.

• Steel
• Secondary steel products

Our "Magshine(R)" allows for beautiful surface treatment that enhances the metallic texture inherent in magnesium alloys, thanks to a transparent chemical conversion coating and clear coating. It also boasts excellent corrosion resistance, making it suitable for various products. 【Features】 ■ Colorless transparent chemical conversion coating ■ Dense coating ■ Chrome-free ■ High corrosion resistance ■ Surface resistance/less than 1Ω, etc. *For more details, please download the PDF or feel free to contact us.

• Steel
• Secondary steel products