Inspection of Public product

We approve the welding procedure specification (WPS) applied to steel bridges, railways, steel structures, and construction sites, as well as welders/welding operators according to internationally accredited standards requested by clients.

Applicable code
  • ASME Sec IX : Welding, Brazing, and Fusing Qualifications
  • AWS D 1.1 : Structural Welding Code - Steel
  • EN ISO 15614 : Specification and qualification of welding procedures for metallic
    materials - Welding procedure test
  • JIS B 8285 : Welding Procedure Qualification Test For Pressure Vessels
WPS approval procedure
Welder qualification procedure