Line Marking Hunter Valley | Thedolphingroup.com.au Thedolphingroup.com.au is a renowned road marking service provider in New Castle. We offer you wide variety of line marking service that includes hazard strips, car park numbers, pedestrian crossing, speed limits and more. Do visit our site for more info. Contact Us:Company name:- The Dolphin Group Address:- Basement/990 Hunter St, Newcastle West NSW, Australia Zip code:- 2302 Phone no:- +61 1300 661 941 Website:- http://www.thedolphingroup.com.au/line-marking/