Is the WDZ-BYJF wire the same as the BV wire?
Newly renovated house trunking joints if the treatment is not good, then will crack, because the trough of the cement or plaster and putty shrinkage is not the same, the key is to see when you are not equipped with anti- Seal, with no bandage patch, if used, then it is normal cracking, and so the end of heating, and then after a summer, when the fall to repair it, after the crack will not be.
The place where the cracked shovel, I think your home slot should be used to open the kind of straight machine trunking, although relatively good, but the cement can not eat in the smooth trough, there will be filled with cement And the trough between the cracks, which is not professional due to the workers should be mixed with cement mortar and glue to fill the job. There is also a situation, the new house has a few years of construction of the settlement period, will cause local wall cracking, just the trough of the local uneven force caused by cracking
The wall did not use the caulking band lead you to use a toothpick sticky paint to fill and then use a small brush and then brush again paint can be cracked on the process to repeat this process after two or three will not crack