Pouring of molten iron
A jet of heated metal is poured from one cup to another at the ironworks. There are splashes, sparks.
https://www.shutterstock.com/ru/video...
https://stock.adobe.com/contributor/2...
https://videohive.net/user/meh21/port...
http://www.istockphoto.com/portfolio/...
https://www.videoblocks.com/portfolio...
https://www.pond5.com/artist/meh_21