GYXB、GYXCGYXB、GYXC呼吸人孔/压力泄放人孔
面议GYXB、GYXCGYXB、GYXC呼吸人孔/压力泄放人孔
面议FZT、FZT-1FZT、FZT-1阻火透气帽
面议TFA72WTFA72W氨水用单吸阀(负压安全阀)
面议QZF-89QZF-89全天侯防冻阻火呼吸阀
面议HX-4、HXF-4型HX-4、HXF-4型带呼出接管(阻火)呼吸阀
面议HF88、HXF-88HF88、HXF-88全天候快开式呼吸阀
面议HX2HX2带双接管呼吸阀
面议GFQ-2GFQ-2全天候呼吸阀
面议QHXF-88QHXF-88全天候防冻呼吸阀
面议HX-3HX-3带吸入接管阻火呼吸阀
面议HXF-6HXF-6阻火单吸阀
面议HXF2HXF2带双接管阻火呼吸阀
面议