Polylactic acid (PLA for short), melting point of about 160 ° C, density of 1.24g / cm3, PLA monofilament, wire diameter range of 0.07 ~ 3.0mm, environmentally friendly non-toxic, superior
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Silicone rubber pads are specially designed electronic pushbutton switches ... Base: Silicone sheet material that joins all keys/switches on a rubber keypad.