Chain link fence is a common fence material, also known as "hedge net", which is mainly woven by iron wire or steel wire. Widely used in various fields: raising chickens, ducks, geese, rabbits and zoo fences; mechanical equipment protection, highway guardrails, sports fences, road green belt protection nets. After the wire mesh is made into a box-shaped container, the cage is filled with rocks, etc., which can be used to protect and support seawalls, hillsides, road bridges, reservoirs and other civil engineering. It is a good material for flood control. It can also be used in the manufacture of handicrafts and the conveyor network of mechanical equipment.