... Uses: The metal tin hole and the surface points; Maximum plating circuit board area: 450 * 300mm; Tin Time: 8 ~ 12 minutes ... 0 ~ 8V; Current adjustment range: DC 0 ~ 20A; Time: Best plating time is 8 to 12 minutes; Chemical tank Maximum capacity ... , film, photosensitive dry film, developing solution, etching fluid, the liquid copper plating, alloy drill, process files