Located in Tianjin, a port city, Tianjin Zhengyi Technology Co., Ltd. is committed to electronic manufacturing industry and supporting components of electronic products, including PCB design, PCB customization, component purchasing, SMT patch processing,  PCBA one-stop services and wire harness processing services. We are also an agent for the distribution of electronic components. We have the SMT production line and wiring harness workshop. Compared with out competitors, this gives us advantages in terms of cost, quality control and shorter delivery times.