1. The model of ChangZeng is designed using computer aided software such as CAD. This design approach allows our production team to complete the model in a few hours. It is tested by third parties such as SGS and BV
2. Enhancing service of ChangZeng will facilitate the improvement of brand image. It is the best for welding, machining or other needs
3. The product naturally has the advantage of an orderly internal structure and stable chemical composition, crystal form, and physical properties. The amount of carbon present in the alloy is customizable
1. Shanghai ChangZeng Metal Co., Ltd. has advanced production equipment and excellent manufacturing technology.
2. Within our own facilities, we work on reducing our water consumption, carbon emissions and waste stream, now and in the future.