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The outer diameter, inner diameter, wall thickness and other dimensions of the pipe fittings need to be accurately measured to ensure their accuracy.

Each pipe must be welded from a whole rolled plate, and two or more rolled plates must not be spliced ​​together.

Low-pressure pipeline: The design pressure does not exceed 2.5MPa23.

4-way pipe: refers to 0.5-inch pipes, which are approximately 12.7mm (inner diameter) or 20mm (outer diameter) when converted to millimeters. ‌

GB/T13401: Butt-welding pipe fittings made of steel plates.

pipe fittings include connection, direction change, diversion, sealing and support, and they are an important part of pipeline systems. ‌

This is the most commonly used method. A professional bending machine is used to bend the square tube into the desired arc shape. This method requires professional equipment and sk

This method is suitable for situations where square steel tubes need to be welded into right angles with arcs.

‌Use artificial plants‌: Planting plants on square tubes, such as spider plants and other vines, can not only cover the square tubes, but also beautify the environment. This method

There are many ways to fix square tubes to the wall, including expansion bolt fixing method, anchor bolt fixing method and screw fixing method.

Square tubes can be reinforced in a variety of ways, including steel plate reinforcement, welding reinforcement, and butt-to-butt reinforcement. ‌

Hot bending method: First, fix the roller on the iron plate according to the arc car of the outer diameter of the steel pipe, fill the pipe with sand, plug the two ends of the pipe