ISO 14001
Jul 4,2025
- Period:
- Mar 12,2025 - Jul 21,2028
- Certification bodies:
- ISO 14001
The spiral seam submerged are welded steel pipes, galvanized pipes, plastic-steel compound pipe, and pipe fittings we distribute are supplied by Tianjin Youfa Pipeline Technology Co., Ltd. This company has been certified under the ISO 14001 Environmental Management System.
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