About service

Yuantai Derun was established in 2002 and is a global steel company that is a leader in square tube and structural steel pipe related services. It has a total of more than 2,200 employees, 18 subsidiaries, 100+ production lines, and national CNAS laboratory certification. The company is a large-scale joint enterprise group that mainly produces black square tubes, galvanized square tubes, double-sided submerged arc welded straight seam welded pipes, structural round pipes, spiral welded pipes, etc., and is also engaged in logistics and trade. Yuantai is one of the top 500 private enterprises in China and one of the top 500 manufacturing companies in China. Tianjin Yuantai Group has 65 black high-frequency welded steel pipe production lines, 26 hot-dip galvanized steel pipe processing production lines, 10 pre-galvanized steel pipe production lines, 8 photovoltaic bracket production lines, 6 ZMA steel pipe production lines, 3 spiral welded pipe production lines, 2 ZMA steel coil production lines, and 1 JCOE production line.Production types include ERW, HFW, LSAW, SSAW, seamless, hot-rolled, cold-drawn, hot-finished, etc. It is a 5A-level enterprise in management and management and a 3A-level enterprise with the highest credit. The group has passed ISO9001 certification, ISO14001 certification, OHSAS18001 certification, EU CE10219/10210 certification, BV certification, JIS certification, DNV certification, ABS certification, LEED certification, API 5L certification, EN10210/10219 certification, BC1 certification. Yuantai Derun's mission is to provide excellent products and services to steel pipe users, aiming to make structural steel pipes more widely used in global economic development and construction, so that all partners can do business more easily.

Tianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd. is one of the top 500 private enterprises in China and one of the top 500 manufacturing enterprises in China. It has been specialized in manufacturing steel for more than 20 years, with national CNAS laboratory certification and rich project experience.High-quality products:Strict quality control. The first step is quality control during the production of raw materials. The second stage is inspection by the quality inspection team. The third stage is when the packaging team ships the product.The company is a large-scale joint enterprise group mainly engaged in the production of black square and rectangular tubes, galvanized square and rectangular tubes, double-sided submerged arc welded straight seam welded pipes, structural round pipes, spiral welded pipes, etc., and also engaged in logistics and trade. Yuantai Derun's mission is to provide excellent products and services to steel pipe users, aiming to make structural steel pipes more widely used in global economic development and construction, so that all partners can do business more simply.

Tianjin Yuantai Derun is one of the top 500 manufacturing companies in China, with more than 100 patents for steel pipe hollowing technology and national CNAS laboratory certification. During the order production process, our sales staff will follow up on the status of the goods in real time, and will conduct strict quality inspections on the products before the finished products are shipped to meet the customer's customization needs. If there are any problems, communicate in time, and there are professional technical docking and after-sales product problem guarantees. The company's business philosophy: "The same product is better than quality, the same quality is better than price, the same price is better than service, and the same service is better than reputation." Service tenet: high-quality products, low prices, and better services. Adhering to the tenet of "quality first, reputation first, small profits but quick turnover, mutual benefit" and "honesty and trustworthiness, legal operation", we insist on being a quality service-oriented enterprise, timely return visits to customers, and continuously optimize products while solving customer problems.

Tianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd.:Tianjin Bosi Testing Co., Ltd. passed CNAS certification.China's top 500 private enterprises Yuantai Derun Steel Pipe Manufacturing Group has been awarded the honor of China's top 500 private enterprises for more than 10 consecutive years.China's top 500 manufacturing enterprise certificateChina Steel Structure Association group member Tianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd. has been a group member of the Cold-Formed Steel Branch of the China Steel Structure Association for several consecutive years.5A certificate for the operation and management of steel circulation enterprises Tianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd. was rated as a 5A enterprise for the operation and management of steel circulation enterprises by the China Metal Materials Circulation Association.Yuantai Derun Steel Pipe Manufacturing Group - National Square and Rectangular Pipe Manufacturing Industry Single Champion Certificate.Product CertificatesISO9001ISO14001ISO45001LEEDPHDEPDAPI Spec. 5L CertificateAmerican ABS Classification Society CertificationDNV Classification Society CertificationJIS Japan and South Korea CertificationBV French Bureau Veritas CertificationISO9001 Quality Control System CertificationEN10219 European Standard CertificationEN10210 European Standard Certification

A: 1.We keep good quality and competitive price to ensure our customers' benefit.2.We respect every customer as our friend and we sincerrly do business and make friends with them, no matter where they come from.

Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost.

The possibilities for using steel in buildings and infrastructure are limitless. The most common applications are listed below.For buildingsStructural sections: these provide a strong, stiff frame for the building and make up 25% of the steel use in buildings.Reinforcing bars: these add tensile strength and stiffness to concrete and make up 44% of steel use in buildings. Steel is used because it binds well to concrete, has a similar thermal expansion coefficient and is strong and relatively cost-effective. Reinforced concrete is also used to provide deep foundations and basements and is currently the world’s primary building material.Sheet products: 31% is in sheet products such as roofing, purlins, internal walls, ceilings, cladding, and insulating panels for exterior walls.Non-structural steel: steel is also found in many non-structural applications in buildings, such as heating and cooling equipment and interior ducting.Internal fixtures and fittings such as rails, shelving and stairs are also made of steel. For infrastructureTransport networks: steel is required for bridges, tunnels, rail track and in constructing buildings such as fueling stations, train stations, ports and airports. About 60% of steel use in this application is as rebar and the rest is sections, plates and rail track.Utilities (fuel, water, power): over 50% of the steel used for this application is in underground pipelines to distribute water to and from housing, and to distribute gas. The rest is mainly rebar for power stations and pumping houses.