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Chinese Professional Emblem - LED Flashing Pins – Sjj
LED flashing pins are a great giveaway item for any holiday, events, concerts, fairs and anywhere. Custom designed PCB board LED flashing lights can be applied on any kinds of custom pins, no matter die struck or die cast pins, especially on offset printing and photo etched lapel pins. Flashing pins can include several LED lights in just one pin, the LED lights can blink in same time, or blink in turns, just press the button on the backside of lapel pin to turn on & off the LED lights. Ba... -
Factory Cheap Hot Metal Medals - Rainbow Plating Pins – Sjj
The rainbow effect is achieved by a process called anodizing. Metal badges are casted or stamped in a mold firstly, just like any other pins. Before any enamel is added, the metal pins are carefully cleaned and prepared for the anodizing process. A chemical solution is created, and the pins are submerged into it. A grounding wire is then attached to each pin, and an electrical charge is then passed through the metal with a wire. The chemical reaction with the electricity creates an amazing ra...
