There is a lot of flu in the spring, so do not frequent contact with live poultry and stray animals
Enter the beginning of March and spring, turns warm again, the weather is changeable, a variety of diseases and security events is easy invasion. The CDC reminded the public to pay attention to the prevention of respiratory infections, hand-foot-mouth disease, and rabies, and paid attention to safety in the spring. 1, In the early spring, the weather changes repeatedly and the human immunity is weak. In addition, the holiday is over, frequent return visits and frequent contact between people will increase the risk of transmission of respiratory diseases. Common diseases include influenza, epidemic parotitis, chickenpox, measles and rubella. , epidemic cerebrospinal meningitis and so on. The CDC reminds: Pay attention to personal hygiene and protection, develop good living habits, use soap or hand sanitizer and wash hands with flowing water; Daily window ventilation several times; Vaccines such as flu, measles, chickenpox, and mumps can be vaccinated on time and in full according to relevant vaccination requirements to effectively prevent the occurrence of diseases; Peak population should avoid crowded places. 2, It is the season when migratory birds return home after winter and they should be alert to the occurrence of bird flu. Human infection with H7N9 avian influenza is an acute respiratory infection caused by the H7N9 bird flu virus. Poultry and its excreta and secretions carrying the virus may be the source of human infection with the H7N9 avian flu virus. The main clinical manifestation is pneumonia, which often causes fever, cough, and cough. It may be accompanied by headaches, muscle aches, diarrhea, or vomiting. Other symptoms. The CDC reminds: Develop good personal hygiene habits. Wash hands with soap and running water immediately after contact with birds or their excreta. In daily life: Try to avoid contact with live poultry, sick or dead animals or their droppings; Do not go to live poultry markets or move stalls to purchase live poultry or feed them home; Do not slaughter live poultry on your own; It is necessary to purchase and eat chilled fresh poultry, chilled poultry and their products with quarantine certificates. When cooking, the chopping board should be separated from raw and cooked meat, poultry, eggs, etc., must be cooked and cooked. When you go out to play: Avoid direct contact with animals, especially over wild birds. Once fever, headache, stuffy nose, cough, general malaise and other symptoms occur, wear masks, go to the hospital for treatment as soon as possible, and tell the doctor whether he has been to the live poultry market before the onset of illness, whether he has been in contact with poultry and its secretions and excretion. Things, so that doctors can make timely and accurate diagnosis and treatment. 3, March coincides with the beginning of major primary and secondary schools, students will increase the risk of transmission of respiratory or intestinal infectious diseases due to the intervention of new sources of infection, and the accumulation of susceptible populations, and should be alert to the occurrence of clustered cases in schools. The CDC reminds: The education department should strengthen the education activities of students in the prevention and control of common infectious diseases in spring; Schools should maintain the ventilation of classrooms, dormitories, etc. Pay close attention to the students’ physical health, strictly implement various prevention and control measures such as morning and afternoon check attendance, epidemic reports, and disinfection systems. 4, Hand-foot-mouth disease (HFMD) is a common infectious disease caused by various enteroviruses. It occurs in infants under 5 years of age. April to July each year is the peak of the epidemic of hand-foot-mouth disease in our province . The number of cases will gradually increase from March . The CDC reminds: Children should be instructed to develop proper hand washing habits and master the "six-step handwashing method"; The household is equipped with " 84 " disinfectant, pay attention to the environmental sanitation of indoor and outdoor, and change frequently, diligently wash, diligently dry clothes and bedding; Children's toys or other supplies should be thoroughly cleaned and disinfected; Try to take children as little as possible in crowded public places, especially to avoid contact with children who have fever or rashes. Vaccination with EV71 vaccine can prevent EV71 -induced hand-foot-mouth disease, which can reduce the occurrence of severe illness and death. Once suspicious symptoms such as fever, rash (especially perianal rash) or oral ulcers, etc., promptly to the medical institutions at or above the county level, delaying treatment or misdiagnosis will make the children develop into severe cases, and even lead to death. 5, Spring cats and dogs and other animals enter the estrus period, which is the period of high incidence of rabies. During this time, people are happy to go out and go out. At the same time, the clothes are gradually thin. After being bitten by dogs, it is easy to cause skin damage. The CDC reminds: To scientifically manage pets and actively immunize pets. Avoid contact with wild animals and stray animals. If mad dogs or suspected mad dogs are found, they should report to the public security organ in a timely manner. After being bitten by dogs, cats and other animals, they should go to the nearby canine treatment center for treatment as soon as possible. For persons exposed to high risk of rabies, including laboratory workers engaged in rabies research, personnel exposed to rabies, veterinarians, animal trainers, etc., pre-exposure immunization should be performed. 6, As the temperature rises, it is time for tourists to go out and play. They should pay attention to personal protection when they go out to play, prevent allergic rhinitis, asthma, food poisoning caused by pollen allergy, and prevent accidental injury. The CDC reminds: Before the people go out on the road, they should learn about weather and road conditions in advance, and increase or decrease clothes in time according to climate change; Do not pick, purchase, process, or eat wild vegetables, wild fruits, and fungi that are unfamiliar or of unknown origin when outing. When dining out, be sure to pay attention to regular or sanitary restaurants or restaurants. People who have a history of allergies should not go to flowers and luxuriant places as much as they can. When going out on a picnic, it is best to wear anti-allergy medicine, wear a hat, mask and long-sleeved clothing to avoid direct contact with pollen. Seek medical attention if you feel unwell. The information in this article comes from the Internet and was reorganized and edited by China Rescue Equipment Network.
ASTM A789 (ASME SA789) General purpose seamless and welded ferritic/austenitic stainless steel pipe
ASTM A790 (ASME SA790) Seamless and welded ferritic/austenitic stainless steel nominal pipe
GB/T 21833-2008 Austenitic - ferrite grades duplex stainless steel Seamless Steel Tube
Duplex stainless steel tube/super duplex stainless steel tube is composed by and phrase organization of
the austenitic and ferritic about half and half of the proportion. For It possessed both austenite and ferrite
stainless steel characteristics, so it owns high strength and corrosion resistance of stainless steel. Usually,
in the case of low carbon content of C, Cr content is about 18% ~ 28%, Ni content is about 3%-10%, Some
steel contain Mo, Cu, Nb, Ti, N and other alloy elements.Compared with ferrite, plasticity and toughness is higher
, there is no room temperature brittleness, intergranular corrosion resistance and welding performance were
significantly increased, while maintaining a ferritic stainless steel of 475 ℃ brittleness and high thermal conductivity,
it has the characteristic of superplasticity. Compared with austenitic stainless steel, the yield strength increased
significantly, the resistance to intergranular corrosion, stress corrosion and corrosion fatigue and abrasion
performance improved significantly.
Duplex Stainless Tubes Stainless Steel Tubes,Duplex Stainless Tubes,Duplex Stainless Pipes,2205 Duplex Steel Pipes Ningbo Huijie Steel Pipe Manufacturing Co.,Ltd , https://www.hjbearingtube.com