Do you know all the applications of foam concrete

Do you know all the applications of foam concrete

Foam concrete blocks are the most widely used form of foam concrete in walls. On the one hand, the blocks are mainly used as wall insulation; on the other hand, foam concrete blocks with density grades ranging from 900kg / m3 to 1200kg / m3 ...
The most comprehensive rolling bearing knowledge-2

The most comprehensive rolling bearing knowledge-2

The rolling bearing is a unique mechanical detail that adjustments the sliding friction among the running shaft and the shaft seat into rolling resistance, thereby decreasing friction losses. ...
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