... 1,High quality and reasonable price products,with best service and fast shipping. 2,Certification CE & Rohs. 3,PCB ... ) technology.4) UL,CE,FCC,Rohs standard5) With IPC-610D manufacturing and other international standards.6) ... Nitrogen gas reflow soldering technology for SMT.7) High density interconnected board placement technology capacity. ... located in China. PCBA for touch screen OEM service