It is understood that the Longwan valve industry started in the 1970s. At present, the Longwan valve industry has more than 1,400 manufacturing enterprises, and has formed a valve industry featuring various pipeline valves, high-temperature power station valves, and electro-hydraulic linkage quick-closing valves. The group includes one enterprise with an annual output value of over one billion yuan and six companies with over one hundred million yuan. According to statistics, Longwan has an annual output of 200,000 tons of stainless steel valves, accounting for more than 40% of the total annual output of the country. In 2007, the Longwan valve industry realized a total industrial output value of 10.3 billion yuan, accounting for more than 25% of the national valve market. Longwan valve products not only occupy the domestic mainstream market, but also enter the international market and export to nearly 60 countries in Southeast Asia, North and South America, the Middle East, and Western Europe.
In addition to the ever-increasing scale, Longwan valve companies have also persisted in technological innovation in recent years. The Longwan valve industry now has 31 high-tech enterprises of all types, including 4 at the national level and 11 at the provincial level; 6 provincial-level high-tech R&D centers have been established; in 2006 and 2007, the local valve industry undertook a total of national science and technology There are 1 SME Innovation Fund, 13 National Torch Programs and 2 national key new product projects; 4 major electromechanical equipment specialties in Zhejiang Province, and 368 patents of various types. Already have strong technical development capabilities and technological innovation capabilities.
Dry weather is the "culprit" of cold
"The child has been suffering from a cold for more than two weeks. He has a fever and a runny nose. At first, I thought he had a common cold, so I went to the nearby clinic to buy medicine, but it didn't work. Now the child not only coughs, but also has blisters on his mouth and nosebleeds at night. This year has passed without much comfort..." at a maternal and child health care hospital in Chaoyang District, Beijing, The child's parents, Ms. Zhao, said in distress.
According to the pediatrician of the hospital, there is a high incidence of respiratory diseases in children this winter. The main reason is that the weather is dry this year, there is no snow, and there are many bacteria and dust in the air. From the reception situation, the patients are basically mycoplasma infection or chlamydia infection, including many cross infections.
Zhang Xingchao, deputy director of internal medicine of Beijing hospital, introduced that due to the low air humidity, the influenza virus propagates faster in a dry environment and survives on floating dust, which will accelerate the spread of cold. However, due to the failure of "wet deposition", it will also cause serious urban air pollution and easily lead to respiratory diseases such as asthma and pneumonia.
The medical staff of the cardiovascular department of Beijing Municipal People's hospital told reporters that since the beginning of winter, there has been a long drought without rain (snow), the weather is warm and dry, and people's life is irregular during the Spring Festival, resulting in changes in human physiological functions, slow blood flow speed and increased blood viscosity. Middle-aged and elderly patients with hypertension and hyperlipidemia are prone to cerebrovascular spasm, coronary heart disease and other diseases. These diseases have strong concealment, sometimes come quickly and seriously, and are easy to lead to sudden death. Before and after the Spring Festival, the number of middle-aged and elderly patients with cardiovascular disease increased abnormally, especially the elderly over 65 years old.
Wang, director of cardiovascular department of Beijing Municipal People's Hospital, reminded that in the current extremely warm and dry weather environment, the effective way to prevent cardiovascular disease is to drink more water, eat less meat, exercise more and keep warm. Especially the middle-aged and elderly people with "three high" should pay special attention
Experts suggest that in a dry environment, Aroma Diffuser can be used to alleviate air drying, moisturize the skin and solve the problem of drying
Oil humidifier diffuser, Glass essential oil diffuser, Smart diffuser oil, Diffuser essential oil, Essential oil diffuser
Shenzhen Ewong Technology CO.LTD , https://www.dgewongtech.com