... with production capacity of 100K sqm per year. We are PCB factory in Shenzhen city, our products specifications as below:Base ... material: FR4, FR1, FR2, Ceramics, Aluminum, Rogers, F4B, F4BK, F4BT, TP, PF, CEM-1, CEM-3, etc ... leveling, soft gold, hard gold, immersion gold, gold fingers. Shenzhen PCB factory