标题: BS EN 772-2:1998 Methods of test for masonry units — [打印本页] 作者: hgundas 时间: 2019-11-21 20:56:04 标题: BS EN 772-2:1998 Methods of test for masonry units —
[attach]214506[/attach] BS EN 772-2:1998
Methods of test for
masonry units —
Part 2: Determination of percentage
area of voids in masonry units
(by paper indentation)