Waste-free progressive die

To process a silicon steel sheet with a thickness of t=0.35mm as shown in the figure, we have developed a simple waste-free progressive die in practice, the structure of which is shown in the figure. 1. During the working process of the mold, the raw materials are cut according to the strip, and the width is the outer dimension of the part, AB=45mm. When the strip is fed from the right end along the guide plate, the first step is to position the two retaining nails 1, the two punching punches 7 complete the punching hole work, and the punching punch 2 is sheared. The second step will be the first

Blue Through-hole LED

We are Blue Through-hole LED manufacturer from China.



Those Blue Through-hole LED was born for excellent lighting effects.

Need some really bright LEDs? Contact us now!

Blue LED


Blue Through-hole LED is easy to use in decorated your home or garden. It is also widely used in LED street lamps, LED traffic lights, LED backlight, Disney toys, LED color lighting products, LED lighting engineering and other fields as well.

In 18 years, we supply the Blue through-hole LED with high efficiency, high luminance, low light attenuation has been recognized by our customers.

5mm round LED


1, Color is wide enough to suit every one's needs and taste: deep blue Through-hole LED, Violet blue Through-hole LED, blue Through-hole LED, blue grow light Through-hole LED, sky blue Through-hole LED, light blue Through-hole LED, aqua blue Through-hole LED. For instance: 440nm purple-blue Through-hole LED, 445nm blue Through-hole LED, 450nm deep blue Through-hole LED, 455nm Grow light blue Through-hole LED, 460nm Blue Through-hole led, 465nm blue Through-hole led, 470nm pale blue Through-hole LED, 475nm water Through-hole SMD LED, 480nm Sky Blue Through-hole LED.


2, Different brightness: common brightness blue Through-hole LED, High light blue Through-hole LED, Super bright Blue Through-hole LED, Ultra bright Blue Through-hole LED.


3, Variety of shape/size available: We supply the blue Through-hole LED, such as: blue Round through-hole LED, blue Straw hat through-hole LED, blue flat top through-hole, blue Ellipse throuh-hole LED, 3mm Blue Through-Hole LED, 5mm blue Through-hole LED, 8mm Blue Through-hole LED, Rectangle blue Through-hole LED(2*3*4 blue Through-hole LED), Square blue Through-hole LED and so on.


4, Colorful epoxy: Water clear, blue diffused, blue water clear, white blue diffused, white diffused.


5, Variety of angle available: 5 blue degree through-hole LED, 20 blue degree through-hole LED, 30 blue degree through-hole LED, 40 blue degree through-hole LED, 45 blue degree through-hole LED, 60 blue degree through-hole LED, 90 blue degree through-hole LED, 120 blue degree through-hole LED, 140 blue degree through-hole LED ect.


6, The length of pin: LED Lamp's pin can be 17mm, 29mm, 90 degrees bent feet, braided pin and so on. Tips: taping pins can operate on a robot, greatly improving the efficiency of manual plug-ins.

Blue Through-Hole LED,5Mm Blue Through-Hole LED,Super Bright Blue Through-Hole LED,3mm Through-hole Blue LED, 8mm Through-hole Blue LED

Shenzhen Best LED Opto-electronic Co.,Ltd / BESTSMD CO LIMITED(HK) , https://www.bestsmd.com