1. Piping: Use a pipe cutter or a grinding wheel cutter, (cutting piece should be dedicated) to cut the stainless steel pipe vertically according to the required length, trim the end burr, and make it round;
　

2. Welding: The left and right tapered flange flanges (with grooves, specially used for embedding the flanged gasket on both sides) are respectively connected to the two piping ports that need to be connected by tungsten argon arc welding (TIG welding).

3. Gasket: double-sided flange gaskets are lined between the left and right flanges;

4. Fastening: clamp the two flanges with a clamp, and then use a fastening screw (hexagon socket bolt) to clamp the flange or fasten the handle (one end of the external thread is connected with the internal thread of the handle, and one end is flexibly connected with a fixed rivet) .