We are now the construction site will all BV line to AF? What is the purpose, AF line in the end where the better
AF high temperature installation line, temperature level is much higher, ordinary residential do not need so well. This line is usually used in military industry. The Materials are usually made of silver-plated wire, tinned wire and the like, and the use of fluorine plastic. BV is the most common, the most commonly used cloth wire, suitable for general purpose. Material is only copper and PVC.
Looks like a hard disk voltage or jack problem. Look apart. Set the BIOS to default.
The thickness of the three kinds of tubes produced by various manufacturers are not the same, depending on how much you need, there is only one standard, that is, require manufacturers to provide qualified products according to national standards.
Classification and use of waterproof casing and use of commonly used waterproof casing is divided into two kinds of rigid and flexible
