What are the names of PVC pipe fittings?

Update:05-11-2020
Summary:

There are many bai, commonly used elbows, external elbo […]

There are many bai, commonly used elbows, external elbowsPVC Ball Valves Wholesalers in China, internal elbows, direct, external direct, internal zhi direct, etc. There are many different heads, depending on what you want to do.
Fittings for home improvement plumbing fittings.

The pipes are: PPR, FPPR, aluminum plastic pipes, which are commonly used water pipes
There are more accessories. There are: female tee, female live joint, outer live joint, equal diameter live joint, bridge elbow live joint ball valve, flange connection, bulkhead, inner wire elbow, outer wire elbow, bundle joint , Ball valve, triangle valve and so on. . You can also go to the material market to understand