AS 1357.2-2009 Valves Primarily for use in Heated Water Systems - Part 2 Control Valves.pdf 未知 JIS B2207-1995 Basis for calculation of aluminium alloy pipe flanges with full face gasket.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