标 准 编 号：BS EN 13831-2007 简体中文标题：供水设备用带内置横膈膜的封闭式膨胀容器 繁体中文标题：供水设备用带内置横膈膜的封闭式膨胀容器 English Name：Closed expansion vessels with built-in diaphragm for installation in water...