... 4. UL, RoHS, SGS High Quality PCB Manufacturing Shenzhen Yuzhixiang Electronics Co., Ltd, also named Sunsoar Precision Electronic ( HK) Limited, is a ... PCB & PCBA design and copy, PCB manufacture to Electronic components purchasing and PCB Assembly. Our products are widely ... Materials (RoHS Compliant) , CEM-3, CEM-1, Aluminium, High frequency Material (Rogers, Teflon, Taconic)Layer No.1 - 30 ...