Zhejiang donghua electric co. Ltd. Is a professional manufacturer of the design, manufacture and sale of high-pressure appliances and switch power supply products, with an electrical manufacturing company under the east china shares, an intersensor manufacturing company, and a power manufacturing company, each producing a series of products such as isolation switches, smelting switch switches, high-pressure sensors, high-pressure measuring boxes, and switch power. The company currently has over 1,300 units/sets of equipment for various types of design, manufacture and detection。