空心砖|沙特标准|SASO-ASTM-C652
SASO-ASTM-C652
Standard Specification for Hollow Brick (Hollow Masonry Units Made From Clay or Shale)
空心砖的标准规范(用泥土或页岩制成的空心砌体)
空心砖|沙特标准|SASO-ASTM-C652
SASO-ASTM-C652
Standard Specification for Hollow Brick (Hollow Masonry Units Made From Clay or Shale)
空心砖的标准规范(用泥土或页岩制成的空心砌体)
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