Square steel tubes are classified according to their cross-sectional shapes: simple cross-section square steel tubes: square tubes and rectangular tubes. After the process is processed, it is rolled into strip steel. Generally, the strip steel is unpacked,flattened, crimped, and welded into a round tube, then the round tube is rolled into a square tube, and then cut to the requiredlength. According to the production process, the square tube is divided into: hot-rolled seamless square tube, cold-drawn seamlesssquare tube, extruded seamless square tube, and welded square tube. Rectangular pipes are divided into ultra-thick-walledrectangular pipes, thick-walled rectangular pipes and thin-walled rectangular pipes according to their wall thickness.Seamless square steel tube is a square steel pipe formed by cold drawing and extrusion of seamless steel pipes with four corners.There is a fundamental difference between seamless square pipe and welded square steel tube. Steel pipes have a hollowcross-section and are widely used as pipelines for conveying fluids.

1.Q: Do you provide customized product services? A: Of course, we can design and produce the products you need based on your specifications and drawings. For example: special dimensions, special controls, OEM, etc. 2.Q: Are you a manufacturer or trader?A: We are manufacturers. We have our own factory to produce and process various kinds of steel. The steel can be of conventional type or customized according to customer requirements. 3.Q: Can we get the some samples?Is there a charge?A: Yes, we will provide you with the samples you want. The samples are free of charge, but the customer may have to pay the freight.4.Q: Can we visit your factory?A: Of course, we welcome you to visit our factory on-site or visit our production line through online videos to learn more about our strength and quality. Once we have your schedule, we will arrange a professional sales team to follow up with you.5.Q: How do you ensure the quality of the product? A: All products must undergo three inspections throughout the entire manufacturing process, including production, cutting, and packaging. The factory inspection report is provided with the goods. If necessary, third-party inspections such as SGS can be accepted.6.Q: What is your delivery time? A: Different products and procurement quantities have different delivery times. The product will be delivered as soon as possible on the basis of quality assurance. Usually, if the goods are in stock, it takes 3-10 days. Alternatively, if the goods are out of stock, it will take 25 to 45 days.7.Q: Can you arrange shipment? A: Of course, we have freight forwarders who have been cooperating for many years. We are VIP and can provide you with the most favorable prices and professional services.8.Q: What if I don't have import experience? A: We have rich export experience. As long as you have an import license, please leave the rest to us! We will help you choose the most suitable transportation service to safely and accurately deliver the product to the place where it is needed.