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July 26, 2021
July 09, 2021
(1) Impermeability: refers to the performance of commercial concrete against the penetration of liquids and gases. Because there are interconnected pores and capillaries in the commercial concrete,...
Building molds can use plastic molds or steel molds. The cost of plastic molds is relatively low. So why use steel molds? Let's talk about this with everyone. First of all, although the plastic mold...
The "number of poles" of a three-phase asynchronous motor refers to the number of poles of the excitation winding on the motor. How to classify it specifically, what is the difference between...
On November 23, 2010, the 5th China International Construction Machinery, Building Materials Machinery, Engineering Vehicles and Equipment Expo (baumaChina2010) will be grandly opened at Shanghai New...
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July 26, 2021
July 09, 2021
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.