Bv4 square copper and BVR4 square copper wire What is the difference
Violation of the communication facilities and commits the crime shall be sentenced to fixed - term imprisonment of not less than three years but not more than seven years of age and shall be sentenced to fixed - term imprisonment of not less than seven years
The former core is a single strand of hard copper wire, which is a multi-strand copper wire. 1), BV4 square wire GB diameter 2.22mm, BVR4 square wire GB diameter 19 0.50mm, 2), BV4 square wire with copper weight = 1.11 × 1.11 × 3.14 × 95 × 0.0089 = 3.27kgBVR4 square wire with copper Weight = 0.25 × 0.25 × 3.14 × 95 × 0.0089 × 19 (root) = 3.15kg3), the price BVR4 slightly higher point.
Set-top box of the three colors of the line corresponding to the TV behind the corresponding set of color holes can be, with the TV remote control system can be selected
Do not open the transverse groove is the construction can not cut the wall sidewalk, easy to damage the durability of the wall, to prevent the installation of hardware and other things when the eye to break the wire, the vertical groove is easy to construction and clear line position, there will be no secondary accident , Desperate to adopt
