Can blind holes be threaded?

Yes. Blind tapped holes are commonly used for concealed fasteners. Bottoming taps are ideal for maximizing thread engagement without break-through.

How deep should a blind hole be?

Typically 3–4× the hole diameter. For threaded blind holes, allow additional unthreaded space at the base.

What’s the tolerance range?

±0.05 mm for diameter and ±0.1 mm for depth is common in CNC precision machining.

What do buyers need to provide when requesting a quote?

Buyers should provide hole diameter, total depth, thread specs, CAD files (2D and STEP), material type, and quantity forecast.

Can bronze rust in coastal environments?

Bronze does not rust like iron, but marine air can accelerate patina formation due to increased moisture and salt exposure.

What causes bronze to turn green?

The green coloration on bronze comes from copper reacting with air, moisture, and carbon dioxide to form copper carbonate, also known as patina.

Is patina a sign of damage?

No. Patina is a natural and often protective layer that forms on bronze, helping shield the underlying material from further corrosion.

How can I keep bronze looking new?

To maintain a clean finish, apply wax or lacquer coatings regularly, avoid acidic or abrasive cleaners, and store or install bronze in dry, well-ventilated environments.

Is bronze or stainless steel better for outdoor fixtures?

Both are durable, but bronze offers an aging aesthetic with protective patina, while stainless steel provides a more consistent, modern appearance. The choice depends on visual goals and environmental exposure.

Can I request bronze parts with pre-applied patina or protective finishes?

Yes. YISHANG offers customizable bronze finishes, including pre-patinated and coated options based on client specifications.

Advertising Metal Fabrication Company in China

Sheet Metal Fabrication for Advertising Industry

The advertising industry demands durable, eye-catching, and versatile products for producing high-quality signs, billboards, displays, and promotional structures. At YISHANG, we specialize in providing precision-engineered metal products tailored to the unique needs of the advertising sector. With over 26 years of experience in metal fabrication, we offer a wide range of solutions that meet the creative and functional demands of your advertising projects.

From metal signs to illuminated advertising displays, YISHANG offers a diverse selection of products that combine aesthetic appeal with structural integrity, ensuring your advertising stands out and lasts for years.

Metal Products Provided by YISHANG for the Advertising Industry

At YISHANG, we provide a range of high-quality metal products designed specifically for use in the advertising sector. Our products offer excellent durability, flexibility, and customization to meet your specific design and functionality needs.

1. Metal Signs and Billboards

Applications: Outdoor advertising, storefront signage.
Products:
- Custom Metal Signs: We manufacture steel, aluminum, and stainless steel signs, perfect for creating durable and eye-catching displays. Our custom signs are designed to withstand outdoor elements, providing long-term visibility for your brand.
- Backlit Metal Signs: For illuminated signage solutions, we offer backlit metal signs using acrylic, LED light panels, and aluminum frames, ensuring vibrant, high-visibility advertising even in low light conditions.
- Architectural Signage: Large metal structures integrated into buildings or public spaces, providing an attractive and long-lasting solution for outdoor advertising

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2. Advertising Displays and Frames

Applications: Trade shows, retail displays, promotional signage.
Products:
- Custom Metal Frames: Tailored frames for advertising displays, constructed from materials like aluminum and steel, designed to hold posters, banners, or digital displays securely.
- Freestanding Display Units: We manufacture freestanding units that are ideal for trade shows, events, and retail environments. These frames are lightweight yet durable, providing the necessary strength for your advertising displays.
- Modular Display Systems: Our modular display systems are designed for easy assembly and transport, making them perfect for trade shows and temporary installations.

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3. Illuminated Advertising Solutions

Applications: Light boxes, LED displays, illuminated signs.
Products:
- Metal Light Boxes: Constructed with aluminum or stainless steel, our light boxes are perfect for illuminated advertising, offering vibrant and uniform lighting for indoor or outdoor applications.
- LED Signs: We offer high-quality LED-illuminated signs, providing energy-efficient and long-lasting solutions for modern advertising needs. These signs are designed for maximum brightness and visibility.

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4. Metal Frames for Digital Screens

Applications: Digital signage, interactive displays, outdoor advertising.
Products:
- Weatherproof Enclosures: We create robust metal enclosures for digital signage screens that protect the technology from harsh environmental elements while ensuring optimal visibility.
- Custom Digital Screen Frames: For both indoor and outdoor applications, our custom frames can be made from steel, aluminum, or stainless steel to provide a stylish, protective housing for digital advertising screens.

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Get in Touch with YISHANG for Your Advertising Solutions

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Sheet Metal Fabrication for Advertising Industry