Ningbo Zhongwang Electronics Scientific Technology Co., Ltd (Ningbo Sanjiang Ultrasonic Equipment Factory) was founded in the 1980s.  Through more than         20 years'  hard work and unceasing progress,  three series and more than 20      types of equipment  ( ultrasonic welding machine,  ultrasonic metal welding            machine and ultrasonic cleaner )  have been successfully researched and developed by integrating the sophisticated ultrasonic technology at home and abroad,  and multiple national patents have been obtained.  Some products fill       the blank in domestic market;  the ultrasonic copper pipe cutting and sealing machine researched and deveolped by the company obtained the innovation       fund given by the Ministry of Science and Technology of the People's Republic        of China in 2009.

The company follows the tenet of "To operate with good faith, buile first-grade products" .  As for product design,  it is ensured that advanced technology is adopted,  the structure is reasonable and precise and the appearance is beautiful.  Strict material selection can grarantee the product quality;  the key parts and imported famous brand products;  and a set of strict and scientific management system is implemented for the whole production flow.

At present,  the company has established perfect system for the design and production of standard series products and nonstandard series products,  and       sales and after-sale service.  The sales and service netework is wider andwider:     offices have been set up in some areas in China and the products have been        sold all voer China and exproted to many countries.

Welcome the new and old customers to come to our company for survey and negotiation.  Let's co-create a bright future!