Turnkey printed circuit board assembly (PCBA) services, PCB layout and design, material sourcing, SMT and THT assembly, IC programming, functional testing, conformal coating, cable assembly, and box-build assembly, are the field Shenzhen STHL Technology Co., Ltd. leads as a high-quality electronics manufacturing services (EMS) provider in China. Established in 2006 and running 6,000 sqm facilities, including 6 SMT lines, 2 THT lines, 2 function-testing lines, and 2 box-build lines, STHL serves automotive, medical, industrial-control, and consumer-electronics customers.