... PCB board 2.single layer circuit board 3. HASL surface finish 4. Min trace & min space 0.3 5. PCB manufacturer Our Ability ... CEM-1, aluminum, and moreFinish board thickness: 0.2 to 3.2mmExternal copper thickness: 35 to 210umInternal copper thickness: 17 to ... 10 to 300VOSP surface finishingSolder mask types: green, yellow, red, white, blue, matte green, matte black, and more single circuit pcb board