3K plain carbon fiber tube is an extremely strong and light fiber-reinforced plastic which contains carbon fibers, 3K plain weave makes the carbon fiber tubes look high end.
This smd led 0402 yellow color normally brightness is 60-120mcd, often be used for indicator. It is widely used for many electronic products. Telecommunication: indicator and backlighting in telephone and fax. Flat backlight for LCD, switch and symbol. We