Mainly the angle. The beveling machine has a special machine. You can also grind the inclined plane by hand according to the depth of the plane. Then, install the slice with an angle grinder and cut it along the welding line in the steel pipe. If there are more, you will know an approximate distance. If the quantity is large, it is best to use a machine, try while grinding, and add slices by hand grinding (angle grinder). When the angle you need is ready, adjust the angle of the machine according to this angle, and first slowly grind a hole on the inclined plane of the interface. Don't try if you care too much, lest you shift. No matter what size of pipe, the length can be unlimited, and it is the same after grinding. Determine the opening size, and then grind the first rough gap with an angle grinder. The slope of the same staircase is the same, so is the slope of each handrail. First, make a mold, and the problem of butt joint is based on the weld in a pipe (steel pipes are all welded with steel belts).

Stainless steel: The corrosion resistance of stainless steel decreases with the increase of carbon content. Therefore, the carbon content of most stainless steels is relatively low, with the maximum not exceeding 1.2%, and the Wc (carbon content) of some steels is even lower than 0.03% (for example, 00Cr 12). The main alloying element in stainless steel is Cr (chromium), and only when the Cr content reaches a certain value can the steel have corrosion resistance. Therefore, the Cr content of stainless steel is at least 10.5%. Stainless steel also contains elements such as nickel, titanium, manganese, nitrogen, niobium, molybdenum, silicon and copper. The corrosion resistance of stainless steel decreases with the increase of carbon content. Therefore, the carbon content of most stainless steels is relatively low, with the maximum not exceeding 1.2%, and the Wc (carbon content) of some steels is even lower than 0.03% (for example, 00Cr 12). The main alloying element in stainless steel is Cr (chromium), and only when the Cr content reaches a certain value can the steel have corrosion resistance. Therefore, the Cr content of stainless steel is at least 10.5%. Stainless steel also contains elements such as nickel, titanium, manganese, nitrogen, niobium, molybdenum, silicon and copper.