PPR elbow with seat

Embedded elbows with seat include horizontal pipes, vertical pipes and elbows connecting horizontal pipes and vertical pipes. The other ends of horizontal pipes and vertical pipes are plug-in ends. The heads are integrally arranged, all are PVC pipes, the outer wall of the horizontal pipeline is integrally provided with a first nail mounting seat, the first nail mounting seat is provided with a positioning hole, and a nail is embedded in the positioning hole.