PRINT CIRCUIT BOARD UL, TS16949, Welcome to our web site:We (Huazheng new material co.,ltd)are a professional factory of electronic material .We supply abroad like Europe,Asia,America.we have factory in Hangzhou and welcome home and abroad friends visit our company.Our products:Cooper clad laminate model:FR-4 ,H140,Cem-3 ,Cem-1,pcbApplication:Mobile phone, Computer,Communication equipment , ...