... 120,000 square meter per month, double side PCB, multi-layer PCB and the high density boards of above 5,000 ... line width0.075mm(3mil)7min.line spaceing0.075mm(3mil)8Surface finish/treatmentHALS/HALS lead free,Chemical tin,Chemical Gold,Immersion ... been committed to the professional high-precision single-double-sided, multi-layer printed circuit board manufacture, and the company always concerned about ...