1. Fittings used for connecting pipes include flanges, unions, clamps, bands, sleeves, and collars, etc.

2. Pipe fittings for changing direction: elbows, bends

3. Fittings for changing pipe diameters: Reducing (Reduced) Tee, Reducing Elbow, Branch Tee, Reinforcing Pipe

4. Increase pipeline branch fittings: tees, fourways

5. Pipeline sealing fittings: Gaskets, plumber's tape, hemp rope, flange blind plate, pipe plug, blind flange, cap, and welding plug

6. Pipeline Fixing Fittings: Clamps, D Shackles, Eye Bolts, Brackets, Supports, Pipe Hangers, etc.