... mask pcb circuit1.Transportation by air,by ship ,by express,up to you 2.Normally package:Inner by vaccum ,out by standard export carton3.Payment ... : by T/T or L/C4.Delivery date ... :01Surface Finished typeHASL,Flash golds,ENIG,OSP(lead freecompatible),Carbon ink,Peelable S/M,HASL(lead free),Immersion silver/tin,Gold ...