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1. Dust bag filter type: Dust bag type is filtered by dust bag and HEPA filter material, and the dust bag should be replaced frequently. 2. Dust cup filter type: The dust cup relies on t…
1. Clean up the debris and dusting accessories in the bucket in time. Clean the dust bag after each work, check whether there is any perforation or air leakage, and thoroughly clean the dust and dust bag …
   Springs are commonly used parts in the mechanical industry and in daily life. The main function of springs is to us…
With the change of people's lifestyle, hardware is becoming more and more humanized and intelligent. In recent years, China's hardw…
1. Nutritional Additives
(1) Vitamin additives
According to a survey conducted by the Mestre Talent Institute, 50% of Fujian Province's enterprises, which are one of…
The optical glass is made of high quality quartz sand. Appropriate addition of excipients. Due to its high refractive index, low dispersion and good chemical stability, rare earths can be used to produce …
A power source that uses visible energy to generate visible light is called an electric light source. The invention of an electric light source promotes the construction of an electric device. The electri…
On the one hand, marketing must have its own personality, use its own characteristics to create demand to attract consumers, and 
As the main downstream of coal, the increase in power generation and steel production in the first half of 2013 is a high probability event
The emergence of locks came in various forms long ago. The ancients used clumsy methods to replace the use of locks. Today, in our