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Certification
  • Jiangsu Zhongtong Pipe Industry Co., Ltd. Sertifikat SNI
  • Jiangsu Zhongtong Pipe Industry Co., Ltd. Sertifikat SNI
  • Jiangsu Zhongtong Pipe Industry Co., Ltd. ISO14001:2015(GB/T 24001-2016)
  • Jiangsu Zhongtong Pipe Industry Co., Ltd. ISO45001:2018(GB/T 45001-2020)
  • Jiangsu Zhongtong Pipe Industry Co., Ltd. ISO 10012 Measurement Management System Certificate
  • Jiangsu Zhongtong Pipe Industry Co., Ltd. ISO9001:2015(GB/T 19001-2016)
  • Jiangsu Zhongtong Pipe Industry Co., Ltd. ISO 22301:2019(GB/T 30146-2023)
  • Jiangsu Zhongtong Pipe Industry Co., Ltd. ISO 28000:2022 Certificate of Supply Chain Security Management System
  • Jiangsu Zhongtong Pipe Industry Co., Ltd. ISO 50001:2018(GB/T 23331-2020)
  • Jiangsu Zhongtong Pipe Industry Co., Ltd. ISO 37001:2025 Certificate of Anti‑Bribery Management System
  • Jiangsu Zhongtong Pipe Industry Co., Ltd. ECM Type Approved Certificate for Pipes and Fittings
  • Jiangsu Zhongtong Pipe Industry Co., Ltd. Certificate for Certification of China Environmental Labelling Product
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