Sri Krishna Plasto

https://www.youtube.com/channel/UCx6CrkSBQUcLmpoCgTTTOGA/videos

National

https://www.youtube.com/user/NationalPrecast/videos

Modular

https://www.youtube.com/user/ModularPrecast/videos

East Coast

https://www.youtube.com/user/eastcoastprecast/videos

Jensen

https://www.youtube.com/user/JensenPrecast/videos

leo build

https://www.youtube.com/user/leobuild/videos

Pre stressed

https://www.youtube.com/user/prestressedconcrete/videos

Armcon

https://www.youtube.com/user/armconprecast/videos

SW by Weaver

https://www.youtube.com/user/SWbyWeaverPrecast/videos

Keegan

https://www.youtube.com/user/KeeganPrecast/videos

Preca

http://www.preca.in/
http://precast.org/

10 reasons for choosing precast concrete

http://www.bibm.eu/precast-concrete/10-reasons-for-choosing-precast-concrete?id=1058

VME

http://www.vmeprecast.com/