DIN 4219-2
Lightweight concrete and reinforced lightweight concrete of dense structure; design and construction
废止
发布日期 :
2001-12-01
实施日期 :
DIN EN 13055-1
Lightweight aggregates - Part 1: Lightweight aggregates for concrete, mortar and grout
废止
发布日期 :
2001-08-01
实施日期 :