If there is any, please pay attention to the storage. If it takes too long, the recycling price may not be high. The sooner it is released, the better. To electricity 132 (don’t want) 6O8 (in hand) 619 (leave it too long) 9 l
The optical fibers currently used in communications are mainly glass fibers, with an outer diameter of about 250 microns and a clear center. Part diameter is 10~60 microns. In medicine, optical fibers are used in endoscopes, and in entertainment, they are often used in signal lines for audio. Oilwood poles are similar to telephone poles, but made of wood. The two names are different, but they are the same thing. The service life of wooden poles (fried poles) is generally 15-20 years.