Marine double Cross Bollard, also known as double Cross Bitt Boat Bollard.
The GBT554-96 marine bollard series comprises five types (A, B inserted bollard, C simple bollard, D single cross, and E double cross), each produced to standard specifications with varying nominal diameters and certified by the China Classification Society. The Type E double cross bollard requires regular maintenance including visual inspections for damage or corrosion, routine cleaning with mild detergent to remove contaminants, lubrication of moving parts with marine-grade lubricant, and timely repainting using marine-grade paint when surface deterioration occurs. For irreparably damaged units, replacement should be performed by qualified marine engineers to ensure compliance with safety standards. Customized bollard solutions are available upon request based on specific project requirements.