1. First, clean the burrs and sanitary cloth at the joints of the ppr pipe and the pvc pipe
2. Use a tape measure to make the size of the casing good
3. Mark the connection size of the joint end of the ppr pipe and the pvc pipe
4. According to the marked size, use electrofusion equipment to heat and expand the connecting holes of the casing respectively, and heat the joint outer diameter of the ppr pipe and the pvc pipe to reduce
5. Insert the connecting ends of the ppr tube and the pvc tube into the casing and keep them for more than 10 seconds.