... :HASL /HASL lead free,HAL,Chemical Gold/tin,Immersion Silver/Gold/Tin,OSP,Gold plating,Hard&Soft gold,Plating tin,Solder mask color :Green ... .If our boards are of problem, we refund you totally! Welcome to KangDong! We have a profesional PCB and PCBA manufacturer in ... , Senor, Fan , Resistence,Capacitor and any others electronic product, Pls contact us for more informations if you have any interests in ...