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Plug and Socket OEM

Our company mainly produces timing socket, wire and cable, wire reel, lamps and steel pipes. At present, our company has obtained VDE/CE/GS/S/D/FI/N/ROHS/REACH and other related certifications.


  • Cause

    To create an honest enterprise for the responsibility To build

  • Vistas

    Let every employee work happilyTo be a sustainable business excellence with the integrity of the enterprise image deeply

  • Core Values

    Run the business with integrity Give back to society with a loving heart

OEM CEE Socket/Plug Manufacturers

Zhejiang Shuangyang Group Co., Ltd. was established in 1986, is famous China CEE Socket/Plug Manufacturers and OEM Plug and Socket Factory, one of the star enterprises of Ningbo City in 1998, and approved by ISO9001/14000/18000.
We are located in Cixi, Ningbo City, which is only one hour to Ningbo harbor and airport, and two hours to Shanghai.
Till now, the registered capital is over 16 million U.S. dollars. Our floor area is about 120,000 sqm, and our construction area is about 85,000 sqm. In 2018, our total turnover was 80 million U.S. dollars.
We have ten R&D persons and over 100 Qcs to guarantee quality, each year, we design and develop over ten new products acting as a great manufacturer. Our main products are timers, sockets flexible cables, power cords, plugs, extension sockets, cable reels, and lighting.


We enjoy a good reputation among our customers. We are always focused on protecting the environment and human safety. Improving the quality of life is our ultimate goal.


Industry Knowledge Extension

What are the common methods of grounding design for plugs and sockets, and what are their functions?

In electrical engineering, the grounding design of plugs and sockets is a key measure to ensure the safety of electrical equipment and users. The main purpose of this design is to prevent the harm of current to the human body during faults such as leakage by connecting the metal shell or conductive parts of the equipment to the ground, thereby providing comprehensive and reliable safety protection.
There are various methods of grounding design, including grounding socket design, grounding screw design, grounding rail design, grounding wire design and grounding ring design. There are some differences in the basic functions of grounding in these methods, but the common goal is to ensure that the metal shell or conductive part of the equipment can be effectively connected to the ground to achieve safe grounding.
Grounded socket design is a common and widely used method. This type of outlet has three sockets, one of which is used for grounding. When the plug is inserted into a grounded socket, the ground wire is connected to the equipment, and the conductive parts such as the metal shell of the equipment are connected to the ground, thereby avoiding the risk of electric shock caused by current flowing through the human body when electrical equipment has leakage or other faults. This design is widely used in homes, industries and commercial locations and is an essential standard for electrical safety.
Ground screw design is usually used in some large equipment or mechanical equipment. By connecting the metal shell of the device to the ground through screws, the grounding screw design ensures that the device can effectively discharge accumulated charges during operation, preventing damage to the device itself and the surrounding environment. This design plays a key role in some special environments and industrial occasions, ensuring the electrical safety of the equipment.
Some complex electrical equipment uses ground rail designs. Ground rails are designed to be part of the equipment and connect the metal parts of the equipment to the ground via the rail. This design is widely used in large industrial equipment and electrical systems. It has a more flexible grounding method and can better meet the needs of complex systems.
In addition, ground wire design is a common and straightforward way. In some equipment, the ground wire is directly connected to the metal part of the equipment to the ground through a special wire, which plays the role of conduction and grounding. This design is suitable for a variety of electrical equipment, including household appliances, industrial equipment, and office equipment, and is a simple and effective way to ground.
A ground ring design is a way of connecting the metal casing of a device to the ground through a metal ring. This design ensures that the metal parts of the equipment can be grounded in time, reducing safety risks such as leakage. The grounding ring design is used in some special occasions and equipment to provide additional safety protection for the equipment.
The joint function of these grounding design methods is to ensure that electrical equipment can safely discharge charges during operation, thereby preventing the risk of electric shock that may be caused by faults such as leakage. The importance of grounding is reflected in many aspects, including protecting user safety, improving the stability and reliability of electrical equipment, and preventing damage to equipment caused by lightning strikes and static electricity accumulation. Grounding can effectively prevent the metal casing and conductive parts of electrical equipment from becoming electrified. When equipment fails such as leakage, grounding can guide the current to the ground to avoid the risk of electric shock to users. This security measure is the basis for ensuring the safety of users' lives.