1. During the design stage of ChangZeng steel pipes, many factors have been taken into considerations such as flexibility, cycle times, tolerances, size precision, etc. It is chosen for its higher resistance to corrosion
2. ChangZeng is proud of building friendly relationships with new and existing business partners. Its heat treatment includes annealed, quenched, tempered, etc
3. Quality and reliability are the basic characteristics of a product. It complies with the standards of GB, ASTM, JIS, BS, EN, TOCT, KSD, IS, etc
4. Our professional quality control team ensures that our products meet industry standards. It can be hot rolled to have malleability
5. Product quality in line with industry standards, and through the international certification. Its microstructure can be Ferritic, Pearlitic, Martensitic, Etc
1. Shanghai ChangZeng Metal Co., Ltd. is a quality-oriented high-tech enterprise specialized in steel pipes. Our company has brought together a group of talented people. Being intellectually curious and energetic, they are able to go deeper into issues and challenge conventional wisdom.
2. We have set up a project management team. They work with clients at all stages of their business and they can help our clients transform ideas into competitively priced products.
3. We have established a solid base in the local market here in China. And we successfully expand our business to many export markets around the world subsequently. The tenet of ChangZeng is the key to our continuous development and growth. Please contact us!