Characteristics of water-proofing agent made of nanometer silicon

Characteristics of water-proofing agent made of nanometer silicon

Before use to clean up the base level (especially the oil pollution, moss), the nanometer silicon waterproofing agent adding 8 times water mix, use spray or brush directly on the dry base construction, and at least two consecutive times (aga...
Under The Epidemic, Europe Gradually Realized The Importance Of Wearing Masks

Under The Epidemic, Europe Gradually Realized The Importance Of Wearing Masks

With the continuous development of the new European crown epidemic, some European countries and cities have stipulated that people must wear masks when going to specific places. Some well-known experts support people to wear costumes. ...
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