Double Bitt Bollard Marine dock inclined double bitt bollard is one type of security dock bollard. Double bitt bollard is a better choice for ship mooring, shifting. Marine bollard has various types which are designed according to berth capacity, wharf structure: Kidney bollard, staghorn bollard, T-head bollard, J type bollard, R type bollard, single bitt bollard, double bitt bollard etc. As a professional bollard seller, we produce the nominal standard marine bollards and the customized bollards for customer’s requirements. We provide high quality products, prompt delivery and competitive price. If you’re interested in our products, please feel free to contact us. Features of Double Bitt Bollard 1. Double pillar bollard; 2. Strong and durable designs; 3. Bollard Capacity:20 to 200tonnes; 4. Bolts Quantity: 8 to 10; 5. Material: Cast iron, cast steel ,cast SG iron; 6. Surface: Polished and galvanized; 7. Color: red, black, grey etc.; 8. Guarantee: 1 year; 9. Certificate: CCS, ABS, GL, NK etc. 10. Can be customized