If the purchasing unit needs other specifications, they can negotiate with the production factory to determine.　　There are six levels of volumetric density: B, B, B, B, B, and BHandan Daming,　　, becoming an important component of new building materials.　　There are six levels of volumetric density: B, B, B, B, and BBissau, all versions shown are valid. All standards will be revised, A,Handan Damingaerated block brick, A, A, A, A, and A　　 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 six levels of volumetric density: B, B, B, B B, and B　　Due to its high water absorption rate and drying shrinkage rate, concrete blocks are prone to wall problems after use in construction projects　　 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.Application process,　　 Block product marking: Mark in the order of product name (code ACB), strength level, bulk density level, specification size, product grade, and standard number.　　 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).　　 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).

　　 Blocks are classified according to their compressive strength and volumetric density.Scheme customization,　　This standard applies to autoclaved aerated concrete blocks (hereinafter referred to as blocks) used for walls and insulation in civil and industrial buildings.　　 When constructing aerated bricks,　　This standard applies to autoclaved aerated concrete blocks (hereinafter referred to as blocks) used for walls and insulation in civil and industrial buildings.　　There are seven strength levels: A, A A, A, A, A, and A　　There are six levels of volumetric density: B, B, B, B, B, and B