... 2.Small tried order acceptable 3.Nice after-sale service Electric SMT PCBA, OEM servicePCBA specific instructionMaterial:FR-4Layer: 2 layersSurface ... servicePCBA OEM&ODMkinds of pcba manufacturedPCBA service: medical, instrument, environmental, industrial, networking, automotive, aeronautics, security and other industries equipment productsCertificationISO9001-2000 ...