... with production capacity of 100K sqm per year. We are PCB factory in Shenzhen city, our products specifications as below:Base ... , TP, PF, CEM-1, CEM-3, etc. Board thickness: 0.30 to 3.20mm (12 to 26mil) Copper thickness: 0.50 ... leveling, soft gold, hard gold, immersion gold, gold fingers. Shenzhen PCB factory