1. The company promises fast turnover and flexible delivery; At the same time, it supports a wide range of PCBs: advanced, multi-layer, rigid and flexible, high-frequency and high-speed.

2. Professional supplier positioning, seamless connection from prototype to mass production; 12 SMT production lines, whole process quality assurance, IPC, and special industry inspection standards.

Tongzhan was founded in 2011. Committed to becoming a leading one-stop EMS supplier. We focus on high-speed turnkey PCB services: PCB design, manufacturing, component procurement, PCBA, and supply chain services.
The product solution supports flexible supply. The types of plates support rigid plates, soft plates, and rigid flexure plates. The products provide one-stop services from SMT, post welding, assembly to testing. They are RoHS-compliant lead-free assembly/non-RoHS assembly and conformal coating. We will focus more on innovation and providing quality products. Our agility enables us to define and redefine our market.