... delivery 4, considerate service pcb board for LED display 1-12 layer:FR-4, AluShort lead timeMore than 10 years ... experienceISO9001, ISO14001,RoHS,UL,TS16949, SGS TestFactory Manufacture Capability:Layer: 1 to 12 layersMaterial type: FR-4, CEM ... 530mm (board thickness>1.2mm)F, Six-layer pcb: 430*430mmG, Eight-layer pcb: 430*430mmH, More than eight ... : UL, ISO 9001, SGS pcb board for LED display