The harm of noise should not be underestimated. It not only interferes with people's sleep and daily routine, but also causes damage to hearing, cardiovascular and nervous systems if exposed to it for a long time. In response to this, the government has formulated regulations, clarified the regulato

Flood barrier may also refer to barriers placed around or at individual buildings to keep floodwaters from entering the buildings.

Water filled inflatable flood barriers are engineered, temporary cofferdams made from flexible PVC coated tarpaulin. They have internal patented baffles for safety and stability on site. Water filled inflatable flood barrier come complete with fill ports, drain ports and pipe loops, and can be rapid