... board 4. UL, RoHS, SGS FR4 Rigid PCB Board from Shenzhen ChinaShenzhen Yuzhixiang Electronics Co., Ltd, also named Sunsoar Precision ... 1-6 layers of FPC production. Our business range covers from PCB & PCBA design and copy, PCB manufacture to Electronic ... HASL Lead Free, Immersion gold, Gold plating, Gold finger, immersion silver, immersion Tin, OSP, Carbon ink,Certificate ROHS ISO9001:2000 TS16949 ...