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Abstract In November 2013, China's polysilicon imports surged to the second highest point of the year, and foreign dumping further intensified. According to the latest customs statistics, the import volume of polysilicon in November soared to 7,914 tons, a substantial increase of 48.5% fr

An alarm is an electronic product that alerts or warns us to take certain actions in the form of sound, light, and air pressure to prevent or prevent the consequences of an incident. Alarms are classified into mechanical alarms and electronic alarms. With the advancement of science and technology,

In recent years, a large number of farmers have gone out to work. The website reminds migrant workers to pay attention to occupational health and protect their own health rights according to law. Migrant workers are mostly concentrated in key occupational hazards such as construction, mining, coal

Sapphire substrate will benefit from the explosion of LED lighting market Due to the continuous decline in the price of LED lighting terminals, the entry into force of the incandescent lamp ban policy in major countries and the awareness of energy conservation and environmental protection, it is ex

Abstract Recently, the Shandong Province Entrepreneurship Innovation Work Conference was held in Jinan. The meeting thoroughly implemented the new requirements of the internship of General Secretary Ping Ping on the development of Shandong, exchanged experiences of entrepreneurial innovation

Festool FESTO Regulators preventive maintenance and repairs: Festool FESTO control valve repair generally has two kinds: First, preventive maintenance, mainly to ensure the reliable operation of the regulating valve, and preventive maintenance measures taken in the absence of failure, including th

As one of the main materials for decoration, ceramic tiles are closely related to the overall effect and quality of the decoration. In the home decoration, the most used place for the tiles is the kitchen and bathroom. If the quality of the tiles is not good, the waterproofing of the kitchen a