ball valves
Ball valves in gas installations
I was able to replace parts. This is also my father taught me, for which he was now very grateful. It turns out that sometimes we do not defend itself against the knowledge. You never know when this knowledge can be useful. His wife, when she returned from shopping, the joy found that our beautifully decorated bathroom again made a warm and cozy, and ball valves are operating properly. Initially, she did not want me to believe that I fixed everything myself. She was really surprised. After all, not every teacher knows the history of such things as heating systems. I had the good fortune thanks to his father. He taught me so much, not just things related to heating.
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