proved to be unreliable and likely to fail should there be shock from an impact or other cause. permissible cast irons must be to specification and obtained from an approved manufacturer. bronze has good resistance to corrosion but is expensive and therefore tends to be used for smaller ship side valves...
proved to be unreliable and likely to fail should there be shock from an impact or other cause. permissible cast irons must be to specification and obtained from an approved manufacturer. bronze has good resistance to corrosion but is expensive and therefore tends to be used for smaller ship side valves...
proved to be unreliable and likely to fail should there be shock from an impact or other cause. permissible cast irons must be to specification and obtained from an approved manufacturer. bronze has good resistance to corrosion but is expensive and therefore tends to be used for smaller ship side valves...
proved to be unreliable and likely to fail should there be shock from an impact or other cause. permissible cast irons must be to specification and obtained from an approved manufacturer. bronze has good resistance to corrosion but is expensive and therefore tends to be used for smaller ship side valves...