限位開關  製造商、經銷商、供應商

*Yueqing Tongda Wrie Electric Factory (headquarter) was founded in 1990
*Our main business is developing and manufacturing industrial control switches, such as Micro Switch, Rocker Switch, Telephone Hook Switch, Push Button Switch, Tact Switch, Refrigerator Switch and so on.
*Our products have passed the testing of UL,C-UL, ENEC,VDE, KC, CE, CB,TUV, CQC, EX (explosion-proof crtification) and other domestic or worldwide safety certifications.
*which has been approved by our customers (Chinese famous brands such as Media, Supor, LG Tianjing, Okin, Joyoung, Povos, Wirlpool, SEB France, Teka etc.) and it is gaining fame from our good product quality.
1. Provide customer-satisfied factory product sand supporting services for high-end complete machine enterprises
2. Integrity, diligence, pragmatism and innovation
3. Meet customer needs, become a national brand, and achieve outstanding employees

Endress+Hauser is a global leader in measurement instrumentation, services and solutions for industrial process engineering. We provide process solutions for flow, level, pressure, analytics, temperature, recording and digital communications, optimizing processes in terms of economic efficiency, safety and environmental impact. Our customers come from various industries, including chemical, food & beverage, life sciences, power & energy, primaries & metal, oil & gas and water & wastewater. Serving comes before earning: this founding principle has shaped our company to this day. That’s why we are always close to our customers with a worldwide network of sales and production centers.

We offer global experience you can rely on. Bürkert is an adaptable organisation with flexible processes. We are continually committed to achieving success, both for our customers and ourselves. Consistent and continuous investment in research & development and in staff training enables us to offer our customers the very best in technology and services. For any request or goal you might have for your fluid process control, Bürkert can be relied upon; working together with you, we'll find the best solution, both from a technical and an economical point of view.
As Bürkert has grown, sales activities abroad have expanded, supported by an increasing number of subsidiaries in key industrialised countries. Our global presence enables us to focus on the most topical problems in specific markets, whilst offering our customers the most efficient solutions in their country.
The result is a global network that today consists of:

• 4 research & development centres
• 5 production locations
• 5 system houses
• 36 subsidiaries worldwide
• 2,400 employees

VEGA Grieshaber KG is a world-leading supplier of level, switching and pressure instrumentation. In the area of non-contact level measurement with radar, the sensor manufacturer has been the international market leader for many years already. Radar sensors from VEGA have proven themselves under extreme conditions – pressures from vacuum to 160 bar and temperatures from -170° to +400° C.
The company and its products have all necessary certificates and approvals for worldwide operation. This applies just as much to the technical reliability as to the quality of the products and services. The ISO 9001 certification of VEGA Grieshaber KG guarantees that all products, from development to manufacture and final inspection, comply with a prescribed, consistently high standard.
Established in 1959 in the Black Forest, VEGA today employs 900 people world-wide, 500 of whom are at the company’s headquarters in Schiltach, Germany. This is where solutions are forged for the most demanding measuring tasks in chemical and pharmaceutical plants, in the food industry and drinking water supply systems, in sewage plants and landfills, in mining and energy production, on drilling rigs and ships, and even in airplanes. VEGA is active with subsidiaries and sales partners in over 70 countries.