About us

   Zhejiang shenler electric co., ltd was founded in
1985, which is focus on R & D, manufacturing and
sales in industrial relay sector, providing more than
50 series, 1000 kinds of relay and socket products.

  We constantly maintains product consistency and
reliability by implementing continuous improvement program through whole production process from
product research and design, parts manufacturing,
mold making, plastic injection to final assembling.
In 2011, Longo was awarded as Global Manufacturer
by GMC audit committee.

LONGO

   LONGO Relay is the first branch of Shenler. LONGO
set R & D, production and sales as one, focusing on
the leading enterprise in the industry of industrial
control relay.
  Over the years, Longo has been committed to market
acumen, technology innovation, and product quality
to provide complete relay solutions to most industrial
applications. Longo has well established sales and
service network covering mainland China and Taiwan,
more than 50% products are exported to the United
States, Germany, France, Italy, Japan, Korea and other
countries and regions.

LONGO 乐工

 We focused on the relay industry for 30 years

LONGO(shenler) was founded in 1985, and has undergone reform and opening up. It has been transformed from ODE
to OEM, and also has gone through three stages of development: producing quality products, developing the domestic
market and focusing on industrial relays.
During the 30 years, we have maintained a rigorous, professional, customer-oriented management service attitude.
Development of the company's growing, we are also increasingly trusted by customers.

LONGO 乐工

Professional

The brand value

Automation

Personalized

Team

TIMELINE
Business History

Registration of the trademark of the brand "Legong乐工";
Mainly focus on relays forhousehold appliances.

Formal application of the trademark "SLOKE";
Shift the company strategy to considering industrial relay as the core.

Obtain the ISO9001 quality system certification;
Begin to export the products.

Listed as one of the industrial leading brands
in the survey over quality, reputation and
competitiveness of consumer goods in the Chinese market;
Establishment of the "School-enterprise Cooperative Scientific 
Research Production Base" with Zhejiang University.

AppraAppraised as one of the Top Ten Relay
Manufacturers in China;
Obtain the project of national Spark Program.

Establishment of Shenle Processing Center;
Realizing the whole industrial chain supporting, including the stamping, injection molding, mold processing, and automatic equipment manufacturing.

Annual output of 20,000,000 relays and 26,000,000 sockets;
Become the main supplier of industrial relay in China;
Obtain the Global Manufacturer Certificate granted by GMC certification agency.

Appraised as Zhejiang Provincial High-tech Enterprise.

Completion of the construction of new plant and formal application of new brand shenler.

Passed the measurement management system and standardization system certification.

Obtain the UL、TUV、CE、CSA、CQC and etc. international certifications.

LONGO 乐工

Become China's top ten relay brand list.

Won the Innovation Product Award in CAMRS China Automation Annual.

Certificate Wall

ISO

CSA

UL

CQC

TUV

CE

中国继电器十强企业         守合同重信用单位

乐清市活力和谐企业         国家级星火计划项目

浙江科技型中小企业         AAA信誉品牌企业

LONGO 乐工