FZT-1阻火透气帽

FZT-1不锈钢阻火透气帽

FZT-1防爆阻火透气帽

FZT-1内螺纹阻火透气帽

HX阻火呼吸人孔

GYXB压力排放阀GYXC紧急泄放人孔

HXF2带双接管阻火呼吸阀

HXF4/HX4带呼出接管呼吸阀

HXF7/HX7带接管阻火单呼阀

HXF3/HX3带吸入接管阻火呼吸阀

GFQ-2/GFQ-II全天候防爆呼吸阀

HXF2不锈钢带双接管阻火呼吸阀HX2