BS EN 1015-11-1999 Methods of test for mortar for masonry - Determination of flexural and compressive strength of hardened mortar.pdf 未知 BS EN 13555-2004 Flanges and their joints. Gasket parameters and test procedures relevant to the design rules for gasketed circular flange connecti..pdf 未知 ANSI B16.41-1983 Functional Qualification Requirements for Power Operated Active Valve Assemblies for Nuclear Power Plants.pdf 未知
