recommended article
- Top 10 Copper Pipe Enterprises in China
- TUV Product Certification
- Class A Enterprise
- Guilin Lijia awarded “2020 Top 50 Enterprises of Guilin”
- Environmental Management System Certificate
- Guangxi Nonferrous Metals Industry Quality Management Award
- Teach you a few ways to remove rust from copper products
- Strict inspection process for copper castings
