Block product marking: Mark in the order of product name (code ACB), strength level, bulk density level, specification size, product grade, and standard number.　　There are seven strength levels: A, A, A, A, A, and AZhangqiu,　　Due to its high water absorption rate and drying shrinkage rate, concrete blocks are prone to wall problems after use in construction projects　　There are six levels of volumetric density: B, B B, B, and BSanta Teresa,　　There are six levels of volumetric density: B, B, B, B, B, and B　　 The following standards contain provisions that constitute the provisions of this standard by reference in this standard. At the time of publication of this standard, all versions shown are valid. All standards will be revised, and all parties using this standard should explore the possibility of using the latest versions of the following standards.　　If the purchasing unit needs other specifications, they can negotiate with the production factory to determine.

　　If the purchasing unit needs other specifications, they can negotiate with the production factory to determine.　　Location, please note that the maximum distance cannot exceed meters.　　There are six levels of volumetric density: B B, B, B, B, and BTest conclusion,　　Marking examples: strength level A, bulk density level B, superior　　 The following standards contain provisions that constitute the provisions of this standard by reference in this standard. At the time of publication of this standard, all versions shown are valid. All standards will be revised, and all parties using this standard should explore the possibility of using the latest versions of the following standards.　　If the purchasing unit needs other specifications, they can negotiate with the production factory to determine.

　　 Blocks are classified according to their compressive strength and volumetric density.Installation works,　　If the purchasing unit needs other specifications, they can negotiate with the production factory to determine.　　Advantages of aerated bricks: Concrete is used as the main raw material for aerated bricks, and then air is added inside which not only　　This standard applies to autoclaved aerated concrete blocks (hereinafter referred to as blocks) used for walls and insulation in civil and industrial buildings.Zhangqiu,　　Marking examples: strength level A, bulk density level B, superior　　 Blocks are divided into three levels based on dimensional deviation, appearance quality, volumetric density, and compressive strength: excellent product (A), first-class product (B), qualified product (C).　　There are seven strength levels: A,ZhangqiuAerated block, A,Zhangqiuaerated block brick,Zhangqiuautoclaved aerated concrete block, A, A, A, and A