Square and rectangular cold-formed hollow steel, also known as square and rectangular cold-formed hollow steel, referred to as square tube and rectangular tube, code F and J respectively.
Rectangular pipes are classified according to the production process: hot-rolled seamless square pipes, cold-drawn seamless square pipes, extruded seamless square pipes, and welded square pipes.
Among them, the welded square tube is divided into:
1. According to the process-arc welding square tube, resistance welding square tube (high frequency, low frequency), gas welding square tube, furnace welding square tube
2. According to welding seam-straight seam welded square pipe, spiral welded square pipe.

Square and rectangular cold-formed hollow steel, also known as square and rectangular cold-formed hollow steel, referred to as square tube and rectangular tube, code F and J respectively.
Rectangular pipes are classified according to the production process: hot-rolled seamless square pipes, cold-drawn seamless square pipes, extruded seamless square pipes, and welded square pipes.
Among them, the welded square tube is divided into:
1. According to the process-arc welding square tube, resistance welding square tube (high frequency, low frequency), gas welding square tube, furnace welding square tube
2. According to welding seam-straight seam welded square pipe, spiral welded square pipe.

Square and rectangular cold-formed hollow steel, also known as square and rectangular cold-formed hollow steel, referred to as square tube and rectangular tube, code F and J respectively.

Rectangular pipes are classified according to the production process: hot-rolled seamless square pipes, cold-drawn seamless square pipes, extruded seamless square pipes, and welded square pipes.

Among them, the welded square tube is divided into:

1. According to the process-arc welding square tube, resistance welding square tube (high frequency, low frequency), gas welding square tube, furnace welding square tube

2. According to welding seam-straight seam welded square pipe, spiral welded square pipe.

Square and rectangular cold-formed hollow steel, also known as square and rectangular cold-formed hollow steel, referred to as square tube and rectangular tube, code F and J respectively.

Rectangular pipes are classified according to the production process: hot-rolled seamless square pipes, cold-drawn seamless square pipes, extruded seamless square pipes, and welded square pipes.

Among them, the welded square tube is divided into:

1. According to the process-arc welding square tube, resistance welding square tube (high frequency, low frequency), gas welding square tube, furnace welding square tube

2. According to welding seam-straight seam welded square pipe, spiral welded square pipe.

Square and rectangular cold-formed hollow steel, also known as square and rectangular cold-formed hollow steel, referred to as square tube and rectangular tube, code F and J respectively.

Rectangular pipes are classified according to the production process: hot-rolled seamless square pipes, cold-drawn seamless square pipes, extruded seamless square pipes, and welded square pipes.

Among them, the welded square tube is divided into:

1. According to the process-arc welding square tube, resistance welding square tube (high frequency, low frequency), gas welding square tube, furnace welding square tube

2. According to welding seam-straight seam welded square pipe, spiral welded square pipe.

Square and rectangular cold-formed hollow steel, also known as square and rectangular cold-formed hollow steel, referred to as square tube and rectangular tube, code F and J respectively.

Rectangular pipes are classified according to the production process: hot-rolled seamless square pipes, cold-drawn seamless square pipes, extruded seamless square pipes, and welded square pipes.

Among them, the welded square tube is divided into:

1. According to the process-arc welding square tube, resistance welding square tube (high frequency, low frequency), gas welding square tube, furnace welding square tube

2. According to welding seam-straight seam welded square pipe, spiral welded square pipe.

Square and rectangular cold-formed hollow steel, also known as square and rectangular cold-formed hollow steel, referred to as square tube and rectangular tube, code F and J respectively.

Rectangular pipes are classified according to the production process: hot-rolled seamless square pipes, cold-drawn seamless square pipes, extruded seamless square pipes, and welded square pipes.

Among them, the welded square tube is divided into:

1. According to the process-arc welding square tube, resistance welding square tube (high frequency, low frequency), gas welding square tube, furnace welding square tube

2. According to welding seam-straight seam welded square pipe, spiral welded square pipe.

Square and rectangular cold-formed hollow steel, also known as square and rectangular cold-formed hollow steel, referred to as square tube and rectangular tube, code F and J respectively.

Rectangular pipes are classified according to the production process: hot-rolled seamless square pipes, cold-drawn seamless square pipes, extruded seamless square pipes, and welded square pipes.

Among them, the welded square tube is divided into:

1. According to the process-arc welding square tube, resistance welding square tube (high frequency, low frequency), gas welding square tube, furnace welding square tube

2. According to welding seam-straight seam welded square pipe, spiral welded square pipe.

Square and rectangular cold-formed hollow steel, also known as square and rectangular cold-formed hollow steel, referred to as square tube and rectangular tube, code F and J respectively.
Rectangular pipes are classified according to the production process: hot-rolled seamless square pipes, cold-drawn seamless square pipes, extruded seamless square pipes, and welded square pipes.
Among them, the welded square tube is divided into:
1. According to the process-arc welding square tube, resistance welding square tube (high frequency, low frequency), gas welding square tube, furnace welding square tube
2. According to welding seam-straight seam welded square pipe, spiral welded square pipe.

The corrugated web steel component is a new type of material, which is characterized by energy saving, material saving, and environmental protection. It can replace traditional ordinary welded H-beams, hot-rolled H-beams, and I-beams. The high and thin wave web members can greatly improve the shear resistance of the beam, and the shear buckling load can be several to several tens of times higher than that of the flat web members of the same thickness.

The corrugated web steel component is a new type of material, which is characterized by energy saving, material saving, and environmental protection. It can replace traditional ordinary welded H-beams, hot-rolled H-beams, and I-beams. The high and thin wave web members can greatly improve the shear resistance of the beam, and the shear buckling load can be several to several tens of times higher than that of the flat web members of the same thickness.

The corrugated web steel component is a new type of material, which is characterized by energy saving, material saving, and environmental protection. It can replace traditional ordinary welded H-beams, hot-rolled H-beams, and I-beams.

The corrugated web steel component is a new type of material, which is characterized by energy saving, material saving, and environmental protection. It can replace traditional ordinary welded H-beams, hot-rolled H-beams, and I-beams. The high and thin wave web members can greatly improve the shear resistance of the beam, and the shear buckling load can be several to several tens of times higher than that of the flat web members of the same thickness.

​The production process of U-shaped steel sheet piles is mainly formed by high-temperature rolling of profile steel rolling mills. It has special size, superior performance, reasonable cross-section, high quality, and tight lock against water.

​The production process of U-shaped steel sheet piles is mainly formed by high-temperature rolling of profile steel rolling mills. It has special size, superior performance, reasonable cross-section, high quality, and tight lock against water.

feature:

1. The cross-section width is large, and the pile sinking effect is obvious.

​2. The section modulus is large.

3. The higher moment of inertia enhances the rigidity of the steel sheet pile wall and reduces structural deformation.

​4. Excellent anti-corrosion effect.

Z-shaped steel sheet piles, building materials, and the locks of Z-shaped steel sheet piles are symmetrically distributed on both sides of the neutral axis. Coupled with the continuity of the webs, the section modulus of the steel sheet piles has

Z-shaped steel sheet piles, building materials, and the locks of Z-shaped steel sheet piles are symmetrically distributed on both sides of the neutral axis. Coupled with the continuity of the webs, the section modulus of the steel sheet piles has

Steel sheet pile is a kind of steel structure with a linkage device on the edge, and this linkage device can be freely combined to form a continuous and compact steel structure with a retaining wall or a water retaining wall.

Steel sheet pile is a kind of steel structure with a linkage device on the edge, and this linkage device can be freely combined to form a continuous and compact steel structure with a retaining wall or a water retaining wall.

The steel pipe pile is composed of steel pipe, tongue-and-groove grooves and tongue-and-groove pins. The left end pipe wall of the diameter of the steel pipe is vertically connected with grooves and grooves. The cross section of the grooves is a box shape with one side open.

The steel pipe pile is composed of steel pipe, tongue-and-groove grooves and tongue-and-groove pins. The left end pipe wall of the diameter of the steel pipe is vertically connected with grooves and grooves. The cross section of the grooves is a box shape with one side open.

​The steel pipe pile is composed of steel pipe, tongue-and-groove grooves and tongue-and-groove pins. The left end pipe wall of the diameter of the steel pipe is vertically connected with grooves and grooves. The cross section of the grooves is a box shape with one side open.

​The steel pipe pile is composed of steel pipe, tongue-and-groove grooves and tongue-and-groove pins. The left end pipe wall of the diameter of the steel pipe is vertically connected with grooves and grooves. The cross section of the grooves is a box shape with one side open.

The steel pipe pile is composed of steel pipe, tongue-and-groove grooves and tongue-and-groove pins. The left end pipe wall of the diameter of the steel pipe is vertically connected with grooves and grooves. The cross section of the grooves is a box shape with one side open.

The steel pipe pile is composed of steel pipe, tongue-and-groove grooves and tongue-and-groove pins. The left end pipe wall of the diameter of the steel pipe is vertically connected with grooves and grooves. The cross section of the grooves is a box shape with one side open.

Square and rectangular cold-formed hollow steel, also known as square and rectangular cold-formed hollow steel, referred to as square tube and rectangular tube, code F and J respectively.

Rectangular pipes are classified according to the production process: hot-rolled seamless square pipes, cold-drawn seamless square pipes, extruded seamless square pipes, and welded square pipes.

Among them, the welded square tube is divided into:

1. According to the process-arc welding square tube, resistance welding square tube (high frequency, low frequency), gas welding square tube, furnace welding square tube

2. According to welding seam-straight seam welded square pipe, spiral welded square pipe.