hdi pcb: 1. High Quality PCB 2. Using Latest Technology 3. Produce PCB and FPC board 4. UL, RoHS, SGS High Quality PCB HDIShenzhen Yuzhixiang Electronics Co., Ltd, also named ... ° 30° 45° 60°Surface finishHAL, HASL Lead Free, Immersion gold, Gold plating, Gold finger, immersion silver, immersion Tin, OSP, Carbon ink,Certificate ROHS ...