... "1.SMT PCBA OEM Manufacturer 2.High quality and best service 3.Competitive price 4.Fast delivery ... , high frequency), CEM1, CEM3,BT,Al base mateiral,and so on.Supplier: SY,KB,ITEQ,Isola,Nelco,Rogers,Grance ... 0.2mmColor of solder maskGreen, Black, Blue,Red, White and so onSurface freatmentHASL,HASL Lead Free,OSP ,Immersion Gold, Immersion ... V-CUT, PunchingPeel strength of line≥61B/inWarp and twist≤0.7%