... .Delivery time:5-7days 3.Certificates:UL,ISO9001:2000,RoHS 94vo pcb for electronic productsMaterial: ceramic , F4 BK-2 , Alu, Rogers ... -4,etc Board Thickness: 0.4-6.0 mmTreatment : Lead Free HASL, ENIG, Immersion Tin, Immersion Silver, OSP etc. Solder Mask ...