M&K Metal Junction Boxes for Secure, Durable and Efficient Electrical Connections
Kangma Electric (Brand: M&K) is a professional manufacturer of low-voltage electrical products, specializing in metal junction boxes, distribution boxes, switchgear, and related accessories.
With modern production capabilities, standardized quality systems, and OEM/ODM support, the company supplies global customers across industrial, commercial, and project-based sectors.
Full range of low-voltage electrical components engineered for building electrical installations and distribution systems.
Customized Production and Brand Support for International Markets
- Full brand protection for distributors
- Registered trademarks worldwide
- Supports automated assembly lines
- ISO 9001 / 14001 / 45001 certified
- CE, ROHS, IEC, UL compliant
- Up to 3-year product warranty
- Custom logo printing & engraving
- Tailored packaging solutions
- Low MOQ per product type
- Reliable global manufacturing partner
- Mold & tooling development
- Product design & engineering support
- International testing & certifications
- 24-hour technical response
- Overseas factory for electrical products
Markets & Applications
Widely used in building electrical installations, distribution equipment, residential and commercial projects.
- Residential Buildings
- Commercial Buildings
- Electrical Distribution Installations
- Industrial Facilities
- Project Contractors
- Brand Distributors

A metal junction box is a protective enclosure designed to house electrical connections like wires and cables. Made from durable materials such as steel or

The term “knockout” refers to a pre-punched, perforated section in a metal junction box that can be easily removed by a tool. This allows the

The terms “Metal Junction Box” and “Knock Out Box” are often used interchangeably, but they do not refer to exactly the same product. While they

One of the primary uses of a metal electrical box is to protect wire splices and terminations. Splices refer to the connection between two wires,