Quality Control
Why Choose Us
Traceable material
Every lot links to a mill certificate: steel grade, heat number, PMI result and mechanical properties.
In-house testing
CNAS-level laboratory: universal testing machine, hydrostatic tester, UT and eddy current, handheld spectrometer.
Special grades
2507 super-duplex deep-sea line pipe and 2520 heat-resistant / nickel-alloy tube, plus 2205 and 904L on request.
Export documents
Pressure piping manufacturing licence, PED/EEM certification and EN 10204 3.1 MTC — the documents EU and RCEP buyers ask for.
Inside the Factory
Certifications & Compliance
ISO 9001:2015 — Quality Management
ISO 14001:2015 — Environmental Management
ISO 45001:2018 — Occupational Health & Safety
PED 2014/68/EU — EEM Certificate (Annex I)
Special Equipment Manufacturing Licence — Pressure Piping
Zhejiang Made Certification — Pressure Piping
High-Tech Enterprise — Zhejiang
Zhejiang Specialised & Innovative SME