Shutters are a style of Windows that originated in China. In ancient Chinese architecture, there were
The leaves of the shutters are an important part of the shutters. When buying a shutter, it is best to first touch the blinds to see if the blades are smooth and uniform, and see if each blade will be trimmed. In general, the quality of the shutter in the details of the blade has good processing, especially in plastic, wood, bamboo production shutter blades, if the quality is better, so it will be a long service life. Centrifugal Fan,AC Fan,DC Fan,Cross Flow Fan,Radiator Fan,Pipe Fan Shenzhen Fusheng Motor Co.,Ltd , http://www.fushengfan.com
Preservative film not only brings benefits but also diseases
, which were used in all dynasties from the warring states period to the han dynasty. The vertical bar is called the mullion window, and there is a horizontal one, called the mullion window. The mullion window is a kind of original pattern of shutters, also can say it is the state of the shutter originally.
The regulating rod is also a key part of the shutter. The control rod of shutters has two functions, one is to adjust the lifting switch of the shutter, the other is to adjust the Angle of the blade. When inspecting the adjusting lever, the shutters should be hung to test to see whether the lifting switch is smooth, and then turn the adjustment rod to see whether the blade's turnover is equally flexible.
Preservative film not only brings benefits but also diseases
Cling film is a kitchen product, usually made of ethylene as a masterbatch, mainly used for microwave food heating, refrigerator food preservation, fresh food and cooked food packaging, etc., in family life, supermarkets, hotels and restaurants. Industrial production of food packaging has a wide range of applications. Cling film brings great convenience to people's lives. It can preserve the moisture of food and is easy to use. But do you know the disease caused by plastic wrap?
The plastic wrap is gently torn to keep the food delicious, which brings great convenience to food preservation. However, more and more studies have found that the cost of convenience may exceed your imagination. For the health of your family, don't put the food wrapped in plastic wrap in a microwave for cooking! Plastic film packaging foods are sold everywhere, but scientists are worried about the convenience of this handy, is it safe? Because some plastic membranes contain substances that interfere with endocrine, it will disturb the hormones in the human body, causing breast cancer in women, congenital defects in newborns, reduction in sperm counts in men, and even mental illness. According to the New York Times report, the EPA has begun to filter thousands of chemicals in an attempt to identify the murderer who may cause endocrine disorders and further study. Hormones are transported to the various parts of the human body with blood, which diverts the body's metabolism, growth, and fertility. When too much, it will trigger the destruction of the adjusted endocrine system. Animal experiments show that the harmful data shows that some plastic film (wrap film) plasticizer is a polyvinyl chloride plastic packaging product, containing di-(2-ethylhexyl)adipate, a plasticizer referred to as DEHA, to increase the plastic wrap. Adhesion, but will penetrate into food, especially high-fat foods. And when heated, the plastic film accelerates the release of the plasticizer DEHA. The Consumer Alliance recently tested the cheese wrapped in plastic wrap and found that 7 of the 19 products were packaged in fresh wrap in the fresh-keeping film, containing a high amount of DEHA, ranging from 51 units to 270 units per million units. The average is 153 units, far exceeding the safe range. The allowable range specified by the European Common Market countries is that there are only 18 units per million units. Since only animal experiments (such as white mice) are harmful, the government has not forbidden the use of DEHA in industry. However, some consumers have begun to reduce the use of plastic film packaging food. Therefore, for the health of you and your family, be sure to use the plastic wrap properly.