Have you ever played with those toys that have different parts that you can fit together to make different things, like Legos or blocks? Well, when people build things out of pipes, they use special parts that work kind of like Legos, but for pipes instead of toys. These special parts are called pipe fittings.
A structural pipe fitting is a kind of fitting that is used specifically for building structures out of pipes. It is like a puzzle piece that fits onto the end of one pipe, and then another puzzle piece fits onto the end of another pipe, and then the two puzzle pieces fit together to create a connection between the two pipes.
These fittings are important for building structures that need to be strong and sturdy, like bridges or buildings. The fittings are made out of strong materials like steel or aluminum, and they are designed to hold the pipes firmly in place so that the structure doesn't fall apart.
So, when people need to build something out of pipes, they use structural pipe fittings to connect the pipes together and create a strong and sturdy structure. It's kind of like putting together a giant puzzle, but instead of using Legos or blocks, you're using pipes and fittings!