1. The design of ChangZeng is simple but practical. It is used in transportation, construction, machinery, shipbuilding, and other fields
2. Our products further enhance profits in customers' business. It is not subject to yield-point runout and can, therefore, require low levels of maintenance
3. It is show by running and practice that rectangular steel tubing has performance characteristics as: . This product offers greater strength and uniformity
4. rectangular steel tubing is superior to the other similar product in . It accepts the de-oxidation process to be killed or semi-killed steel
1. All our technician in Shanghai ChangZeng Metal Co., Ltd. are well trained to help customers solve problems for rectangular steel tubing .
2. Our aim is to produce steel tube suppliers with the best quality and reasonable price, along with the best after-sales service. Please contact.