1. Pipe fittings used for connecting pipes include: flanges, unions, clamps, couplings, sleeves, and collars, etc.

2. Fittings for changing pipe direction: Elbows, Bend Pipes

3. Pipe Fittings for Changing Pipe Diameter: Reducing (Eccentric) Pipe, Reducing Elbow, Branch Support Flange, Reinforcement Pipe

4. Increase pipeline branch fittings: tees, fours.

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, hooks, eye bolts, brackets, supports, pipe hangers, etc.