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(Air brick) during technological process, � 40mm ping-pong balls with addition of lime were inserted into the concrete brick interior
(Air brick) during technological process, � 40mm ping-pong balls with addition of lime were inserted into the concrete brick interior
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机译:(空气砖)在工艺过程中,将40mm的乒乓球和石灰添加到混凝土砖内部
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摘要
The purpose of the notification is to use a ping -pong ball inside the brick to stop air and improve parameters such as: weight, acoustics, heat penetration factor and compression strength at the closed profile.
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