Rectangular tube is a name for square and rectangular tubes, that is, tubes with equal and unequal sides.It is made of strip steel after processing.The strip is generally unpacked, flat, crimped, welded into a round pipe, and then rolled into a square pipe by the round pipe and then cut into the required length.

1. Mechanical industry pipe. Such as aviation structure tube (round tube, oval tube, flat oval tube), automobile axle tube, axle tube, automobile tractor structure tube, tractor oil cooler tube, agricultural machinery square tube and rectangular tube, transformer tube and bearing tube.

2. Pipe for petroleum geological drilling. Such as: oil drilling pipe, oil drill pipe (kelly and hexagonal drill pipe), drilling, oil tubing, oil casing and various pipe joints, geological drilling pipe (core pipe, casing, active drill pipe, drill, press collar and pin joint, etc.).

3. Tubes for chemical industry. Such as: petroleum cracking pipe, chemical equipment heat exchanger and pipe pipe, rust resistant acid pipe, chemical fertilizer with high pressure pipe and transport medium pipe. 4. Pipes for pipes. Such as: water, gas pipe, steam pipe with seamless pipe, oil transmission pipe, oil and natural gas trunk pipe. Agricultural irrigation faucet with pipe and spray irrigation pipe.

5. Pipe for thermal equipment. Such as the general boiler with boiling water pipe, superheated steam pipe, locomotive boiler with heat pipe, smoke pipe, small smoke pipe, arch brick pipe and high temperature and high pressure boiler tube.

6. Tubes for other departments. Such as: container tube (high-pressure gas cylinder tube and general container tube), instrument tube, hand watch case with tube, syringe needle and medical instruments with tube, etc.