Because these 45-degree elbows have so many benefits, they are used in a variety of applications. These benefits include the following: The elbow strengthens and smoothes the interior surface; it uses the least amount of space; it welds a fitting to the pipe, making it completely waterproof; dependable directional shifts reduce pressure disasters and discomfort; and they stop the acti... https://www.shasanpiping.com/socket-weld-45-elbow-manufacturers-exporters-suppliers-stockists.html