... IntroductionNSB Electronic Manufactory, specializes in different crystal case, mobile phone case, TPU case, silicon case, Transparent case, ... Ministry of mold, Injection Dept., R&E Dept., Sales Dept., QC Dept., Personal Dept. and Financial Dept ... for the professional production of mobile phone crystal covers, mobile phone case, TPU case,, mobile phone protection covers, silicon case, Transparent ...