In case of pre-punched purlins, please send us purlin drawings showing the location of the holes.
Pre-punching service
Purlins can be pre-punched in our factory. This makes construction on-site faster and easier. The standardised sizes and locations of holes for fixing screws are presented below. Please contact us for additional information about the pre-punching possibilities.
Holes are made during production at continuous line. Additional information:
Max. material thickness 3mm (for ø 60mm max. material thickness 2mm)
Holes can be made in a row
Oval and rectangular holes can be rotated by 90°.
Usage Scenarios
Construction and Infrastructure Projects Our C-shaped square steel tubing is widely used in building frameworks, roofing structures, and wall supports, providing stability and load-bearing capacity for modern architectural designs.
Solar Panel Mounting Systems The high strength and corrosion resistance of our galvanized steel square tube make it ideal for solar mounting systems that must endure long-term exposure to outdoor environments.
Industrial and Mechanical Frameworks Factories and workshops use our square hollow steel tubing for machinery frames, shelving systems, and heavy-duty storage racks due to its excellent mechanical strength and adaptability.
Agricultural and Outdoor Installations From greenhouse structures to fencing systems, our wholesale steel pipe products deliver lasting performance in agricultural settings where moisture and soil contact are common.
Transportation and Logistics Support Structures C-shaped channels are also used in truck beds, cargo frameworks, and shipping container reinforcements, offering strength without excessive weight.
c shape channelc shape beamc shaped steel channelC Beam ProfileCarbon SteelAISI standard、ASTM A36、Q235、Q345、S355j2、S355K2Perforated Steel C Channel、Slotted C Channel、Punched C Channel41x21、41x41、100mm、125mm、200mm、5#、40#Building Materials
