Use: mainly used to prevent falling people, things, or to avoid, mitigate the fall strike damage, protection of works at heights and pedestrian safety and maintenance site clean. Features: 1, the mesh density is high. Thus can stop the gravel bottom area of 100 square centimetres the following objects such as bricks falling, its security can be much larger than other similar products. Fall-and sand-proof, impact resistance, aging resistance. 2, good ventilation and do not affect the lighting can achieve closed-end jobs, beautify the construction site.