Series 774XDCDA Double Check Detector Assemblies are designed to prevent the reverse flow of polluted water from entering the potable water supply.
Series 774XDCDA Double Check Detector Assemblies are designed to prevent the reverse flow of polluted water from entering the potable water supply.
系列747XDCDA双止回阀检测器总成用于防止污水回流进入饮用水系统中。