电子产品  制造商、经销商、供应商

Hongchang(changzhou) Electronic Co., Ltd established in 1997 and have more than 25years produce experience. It covers an area of 9,000 square meters and a building area of 11,000 square meters.
Our main products are Speaker unit, buzzer, piezo element, ultrasonic sensor and audio jammer.
Speaker: mylar speaker, audio speaker, car speaker, TV speaker, woofer speaker, waterproof speaker, speaker driver
Buzzer: piezo buzzer, piezo transducer, magnetic buzzer, magnetic transducer, mechanical buzzer, SMD type
Ultrasonic sensor: 25Khz ultrasonic sensor, 30Khz ultrasonic sensor, 40Khz ultrasonic sensor
Piezo element: Size from 10mm-50mm
Now we have more than 200 staffs, especially including 18 acoustic engineers, provide products customization service, offer free sample for test.
we are focus on product innovation , Management innovation. The quality of product wasrecognized by customer from all over the world.

IytePro is dedicated to the design and development, production and sales of magnetic connectors magnetic cables usb hub pcba, usb-c series products.Wih rich product developmen ustomzation experience and strong OEM/oDM cepablties HyteProD contnuousy crcates, shares, and provids ustomers with a costeffective product and sincere service to achieve a true win-win situation!
HyteProR was founded in 2009 and is located in Longhua New District, Shenzhen.Wh rich experence and thoughtfu service,t has been recognized as a relable supler to many domestic and foreign buyers.HytePro supports OE/oDM projects.To ensure quality. HytePro has more than 20 QC members to perform rigorous inspections at each stage: ncoming inspection (QC), proces inspection (PQC) and fialinspection (FQC) HytecPro has also been introduced advanced testing equipment, which enables us to make products that meet intenational standards. HytePro productsare popular in domestic and nernational martets such as North America, Eastern Europe and South Africa, and re wel received by domestic and foreign customers.

Quanzhou Sheng Yang Electronic Co., Ltd is a professional manufacture specialized in R&D production ,sales and technical service of different kinds Ro Water System Intelligent Instruments ,Liquid Level Sensor , Components of Water Filter Parts .After years of development ,the company has a scientific research team with engineers as backbone of technology,and at the same time absorbs foreign advanced technology to develop and product intelligent instruments with advanced technology . With many years domestic sale experience and a principle of being creative, advanced and honest, we are always improving our products and services to better satisfy you customers. We believe it's our mission to boost our customer's business, and then our customers will reward us with leadership sales and long-term relationships.