https://www.youtube.com/watch?v=T--SE7HZnV0
Technical Comparison; Pluglvalve – Ballvalve; English
https://www.youtube.com/watch?v=nfwsNyudUg4
Assembly ISO STANDARD English
https://www.youtube.com/watch?v=IM8Bh9nqF-o
https://www.youtube.com/watch?v=T--SE7HZnV0
https://www.youtube.com/watch?v=nfwsNyudUg4
https://www.youtube.com/watch?v=IM8Bh9nqF-o