Membrane switch circuit layer using PCB (rigid board). Circuit of high precision, the minimum qualifying spacing can do 0.5mm, the resistance value is very low, can weld a variety of LED, resistors, fiber and other small electronic components, stable and reliable performance, long service life. The products are mainly used in industrial control function keyboard, feel good, powerful. This product Haven panel according to customer needs to design key content, color, effect, the appearance of fine, rich colors.
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