Central heating 900A using an engcon titrator, city gas 400A

The working video was very late due to a tour of the Enkon plant in Sweden. We are also editing a Swedish website video, so please wait a bit^^ This is a 4K video about filling the road for 900A central heating, 400A LNG gas. Water compaction during sand backfilling Because there are many obstacles up and down, and the diameter of the TS panel drawing operation is large, the backfilling time seems to be twice as long as other operations. A section of road is a job that always requires a lot of attention, as there are space restrictions and obstacles up and down. Thanks a lot for watching.