Aqua film: a kind of hand-cut film for screen process printing. Aqua film is adhered to the screen mesh with water. it requires the use of a lacquer-base ink for printing.
水溶菲林：网版印刷所用的一种手工割菲林。用水溶解而粘附网上。印刷时要采用漆基类油墨。
The simple hand-made technology of screen printing number can achieve continuously print of number in every PCB. The production gives satisfaction to user for stable quality.
通过一种简易的手工丝印序号工艺法，可以连续完成逐张pcb的序号印制且质量稳定。
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