... :2-3weeks 3.Certificates: UL,ISO9001:2000,RoHS Best quality washing machine pcb boardMaterial: ceramic , F4 BK-2 , Alu, Rogers, High Tg ... , FR1, CEM-1, FR-4,etc Board Thickness: 0.4-6.0 mmTreatment : Lead Free HASL, ENIG, Immersion Tin, Immersion Silver ...