1. Eurobotics.
https://www.eu-robotics.net
. Accessed 6 Apr 2017
2. FMC Technologies.
http://www.fmctechnologies.com/en/SchillingRobotics/Schilling-Manipulators.aspx
. Accessed 26 May 2017
3. Graal Tech.
http://www.graaltech.com
. Accessed 29 May 2017
4. Hydro-Lek.
http://www.hydro-lek.com/manipulators.php
. Accessed 26 May 2017
5. ISE.
http://www.ise.bc.ca/manips.html
. Accessed 26 May 2017