Home > About us > Quality Assurance
Sealing, Connecting and Protecting the World’s Pipelines
1. Product Testing Before Delivery
2. Certifications
| ADD: Tongzhou District, Beijing |
| TEL:+86 010-60563990 |
| FAX: +86 010-89503120 |
| Code: 101100 |
| E-mail: jessie@wyxbj.com |
