What is the difference between a power cable and a cross-linked cable?
If there is a number of casing is the number of lines marked, if the line before the iron circle is a small nose, line nose in addition to a small circle and fork, and fork almost look.
I do not know, I do the task, although we also engage in cable
You and he said that he did not understand the professional. Indoor use KGB, JDG steel pipe or PVC pipe outside the road with steel, non-road can use PE pipe
