Recently Nanjing Deers has delivered some 75Ton Bollards to our client. The material is Cast steel and the accessories is Grade 8.8 HDG. Usually the material of bollard can be Cast steel or Cast Iron. We can produce all type bollards and tonnage from 10ton to 200ton, or if you have special requests, we also can customise for you. Our bollard can also be tested by any other third party, like BV, DNV,SGS… Good quality ensure us get more orders. So if interested, feel free to contact us.