GB T554-96 Type C Simple Bollard We supply five types of standard GB/T 554-96 bollard: type A, type B inserted bollard, type C simple bolllard, type D single cross bollard, type E double cross bollard. All our bollards are produced in line with the industrial standard and get the approval of China Classification Society. If you have special requirements about the bollards, we can do it as well. For more information, please email us. Features of GB T554-96 Type C Simple Bollard 1. Double bitts bollard; 2. Standard: GB/T 554-96; 3. Nominal Diameter: 50mm, 75mm,100mm,125mm,150mm; 4. Weight: 4.5 to 49.0kg; 5. Applicable ropes: wire rope, hemp rope, synthetic fiber rope; 6. Material type: cast steel, cast iron, ductile iron; 7. Surface: polished,galvanized 8. Get approval of CCS, ABS etc.; 9. Can be customized.