Joining angles is a type of welding job that involves connecting two pieces of metal at an angle. It requires precision and skill to ensure that the two pieces are securely connected. The term 'ELLS' is an acronym for 'Extended Length Lap Splices, ' which is a type of joining angles weld. This type of weld is used to join two pieces of metal together at an angle, usually in a lap joint configuration. The weld must be strong enough to withstand the forces applied to it, while also providing a secure connection between the two pieces.