Derek in part 2 of acs revision in less than 10 minutes takes us through the purging of natural gas supply less than 0.02 m3 and hopefully getting on with it and in less than the ten minutes.
Derek in part 2 of acs revision in less than 10 minutes takes us through the purging of natural gas supply less than 0.02 m3 and hopefully getting on with it and in less than the ten minutes.
The best trainer Iβve come across watching your YouTube videos.
Well done I can not praise you enough your videos are a massive help for gas engineers.