Summary:　　 Blocks are divided into three levels based on dimensional deviation, appearance quality, and compressive strength: ex[Read the full text]

Summary:　　Marking examples: strength level A, superior　　 The following standards contain provisions that constitute the provisio[Read the full text]

Summary:　　 Blocks are classified according to their compressive strength and volumetric density.　　If the purchasing unit needs o[Read the full text]

Summary:　　as the main raw materials, with an appropriate amount of aerating agent, regulator, bubble stabilizer added, and proce[Read the full text]

Summary:　　 Blocks are divided into three levels based on dimensional deviation, appearance quality, volumetric density, and comp[Read the full text]

Summary:　　Marking examples: strength level A bulk density level B, superior　　If the purchasing unit needs other specifications, [Read the full text]

Summary:　　 Blocks are classified according to their compressive strength and volumetric density.　　 Blocks are classified accordi[Read the full text]