QZF-89抽屉防冻阻火呼吸阀

AS/AB船用油舱呼吸阀

XAXY-500/600紧急泄放人孔

HXF4HXF4带呼出接管防爆阻火呼吸阀

HXF2HXF2带双接管阻火呼吸阀

HXF-3HXF-3带吸入接管阻火呼吸阀

HXF-1HXF-1双向阻火呼吸阀

XAXYXAXY-500/600紧急泄放人孔 XAXB呼吸人孔

GFQ-2GFQ-2全天候阻火呼吸阀

QHXF-2000QHXF-2000防冻阻火呼吸阀

HXF7/BF7HXF7带单接管阻火呼出阀 BF7阻火单呼阀

HXF8HXF8带吸入接管阻火呼吸阀