
The raised-dot metal shielding cover is an electromagnetic protection component designed specifically for precision electronic equipment, manufactured using high-quality sheet metal stamping technology. Its surface-distributed positioning raised dots allow for precise mating and installation with the PCB board, effectively improving assembly efficiency and shielding stability. The product is available in various materials including nickel silver, brass, phosphor bronze, and stainless steel, and offers surface treatment options such as tin plating, nickel plating, gold plating, and passivation to meet the conductivity and corrosion resistance requirements of different scenarios. Widely used in consumer electronics, communication equipment, automotive electronics, and precision instruments, it effectively solves signal interference problems in PCB board RF modules, providing reliable electromagnetic shielding protection for high-frequency circuits and ensuring the stable operation of electronic components in complex electromagnetic environments.
We support customized production based on customer-provided drawings or industry standards.
High-quality low-carbon steel, medium-carbon steel, alloy steel, 304 stainless steel, 316 stainless steel, brass, aluminum alloy, etc.
Powder coating, environmentally friendly blue-white zinc plating, color zinc plating, black zinc plating, environmentally friendly nickel plating, zinc-nickel alloy plating, Dacromet coating, electrophoresis, PVD coating, stainless steel natural color coating, stainless steel passivation, wire drawing, anodizing, etc.
PCB board RF module shielding, mobile phone/communication equipment signal interference prevention, automotive electronic component electromagnetic protection, precision instrument signal isolation, high-frequency circuit electromagnetic shielding
Automotive-specific parts, electronic-specific parts, and communication-specific parts
Do you need non-standard fasteners, precision metal parts, or custom structural components for a specific application?
Yongji helps you develop and manufacture special parts and custom products based on your drawings, samples, technical requirements, and target application scenarios.
Whether you need prototype quantities, pilot production, or stable mass supply, we provide an integrated solution from engineering review to production and delivery.
From fasteners to structural parts, Yongji offers integrated development and manufacturing for a wide range of custom precision hardware products.
Whether you need a few pieces for validation, small batches for development, or large volumes for mass production, we can support your project at different stages.
With integrated manufacturing resources in China and Vietnam, Yongji helps customers achieve stable quality, scalable production, and reliable delivery.

Yongji Precision Hardware is a global manufacturer specializing in precision fasteners and metal structural components. We are China Metal Shield Cover with Raised Features-Stamping Parts Suppliers and Wholesale Metal Shield Cover with Raised Features-Stamping PartsExporter && Company. Founded in 2003, the company has over two decades of experience serving international OEM and ODM customers across multiple industries.
With integrated manufacturing capabilities including cold heading, stamping, CNC machining and sheet metal fabrication...