1. Different topping workmanships are adopted in ChangZeng extraction and refinery. Physical extraction, pyrolytic process, thermal reduction or electrolytic process is available based on different ingredients to be extracted. It comes with installation instructions and videos
2. This product is soft and durable, and is resistant to some degree of pollution. It is an ideal choice for children's bedrooms. It is chosen for its higher resistance to corrosion
3. Shanghai ChangZeng Metal Co., Ltd. takes the performance of galvanised steel profiles seriously.Its heat treatment includes annealed, quenched, tempered, etc
4. The excellent design of galvanised steel profiles will bring you great convenience.
1. Since inception, the ChangZeng brand has been good at producing first-class galvanised steel profiles .
2. Our factory has set up a rigorous management system. This system has stipulated clear regulations for equipment operation, technology, product inspection or testing, which offers strong quality assurance.
3. Environment protection is the priority of our business. We undertake active measures while utilizing our technological expertise and other resources to contribute to advancement.