Dental chairs are one of the most widely used products in the dental field.The dental chair is used for inspection and treatment of oral surgery and oral diseases. Electric dental chairs are mostly used. The main structure is divided into 8 parts (Figure 1). The bottom plate of the whole machine is fixed on the ground, and the bottom plate is connected to the upper part of the dental chair through a bracket. The movement of the dental chair is controlled by the back of the chair. The working principle of the control switch is: the control switch starts the operation of the motor and drives the transmission mechanism to move the corresponding parts of the dental chair. According to the needs of treatment, by manipulating the control switch button, the dental chair can complete the movements of ascending, descending, pitching, tilting posture and resetting. Dental Chair,Best Dental Chair,Dental Chair Price,Portable Dental Chair Hebi Tianchi Trading Co., Ltd , https://www.hebitianchi.com
The average wholesale price of vegetables in Jilin Province fell during the Spring Festival
Due to the abundant supply of the market during the Spring Festival and the weakening of post-holiday demand, the average wholesale price of vegetables in Jilin fell on January 27. The prices of the 18 vegetable varieties monitored fell by 4 liters, 1 flat and 13 crops. The average wholesale price was 5.32 yuan per kg, a decrease of 4.66% from the same period last week. The prices of bitter melons, white radishes and hot peppers decreased by 13.19%, 12.5%, and 10.24%, respectively, while those with higher prices were ginger, onions, and Chinese cabbage, which rose by 7.65%, 3.28%, and 1.01%, respectively. Variety of the varieties are within 10%.