... : Tin soldering, plating gold, immersion gold,OSPIf you need to get a formal quoation,please provide the spec as below:PCB ... Electronic HASL PCB:High quality with competive price. (Good tolerance,Good warpage,Good solderable...) The information about our company's process ... 45° 60°Certificate ROHS, ISO9001:2000, SGS, UL certificateWelcome to ALT PCB factory We can manufacture PCB in high quality ...