ແມ່ນຫຍັງຄືຄວາມແຕກຕ່າງລະຫວ່າງທໍ່ທີ່ມີຄວາມຍືດຫຍຸ່ນແລະທໍ່ແຂງ?

2.Flexible duct are widely used, and can be used as housing construction, engineering construction wooden floors, fire safety pools, crossing roads, reservoirs and other areas that must be fortified against earthquakes. According to the pipeline on the wall, the vibration of the pipeline can be reduced according to the rigid waterproof casing, bear the working pressure of the wall, and effectively deal with the problem of expansion and deformation of the pipeline. While maintaining the pipeline, it can also maintain the wall at a certain level to prevent the wall from cracking and falling due to pipeline vibration or water seepage. ທໍ່ຍືດຫຍຸ່ນ can be installed and applied, while rigid duct cannot be deformed.