Even the slightest advantage can win battles, so various weapons were designed to allow soldiers to see around corners, and fire around them behind the protection of a concrete wall.
The QTC compound building block is a new kind of wall material and has features such as sound isolation, fireprotection, large lifting capability and easy construction and so on.
QTC复合砌块是一种新型的墙体材料,具有隔声、防火、轻质墙吊挂力大、施工方便的特点。
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The utility model has the advantages of simple structure, easy fabrication and convenient operation and use, and a safety climbing tool is provided for fireprotection and wall surface construction.