CWZ series marine or navy small-sized axial fans are suitable for many appropriate ... and etc. for ventilation. CWZ series marine or navy small-sized axial fans are suitable for the ventilation of ... & length of the vanes. The fans have low-noise, small size, light-weight, stable performance, etc.In the course ... to be more than 150mg/m3, and its maximum diameter cannot exceed to 2mm.2. On the duct intake ...