The symptoms of cyanide poisoning in humans are roughly divided into three stages. (1) mild symptom stage: At this time, there are nausea, vomiting, loose stools, etc. The taste is almond bitterness, breathing slightly faster, head congestion, and dizziness. (2) Difficulty breathing stage: At this time, the patient has symptoms such as tinnitus, tremor, general malaise, difficulty breathing, eyeball protrusion, paralysis, paralysis, and angulation. (3) Paralysis stage: At this time, the patient has incontinence and incontinence, the conditioned reflex disappears, the stomach is empty, and the height of the horn is reversed, resulting in death. 358 Fence,358 Mesh Fencing,358 Security Mesh,358 Anti Climb Mesh ANPING COUNTY HUAXING WIRE MESH CO.,LTD , https://www.huaxingwire.com