C.E. 1997
ISO 9001 Quality Management System Certificate.
C.E. 1993
Bureau of Standards, Metrology and Inspection, M.O.E.A., R.O.C. CNS Mark Certificate-Stainless Steel Pipes.
Bureau of Standards, Metrology and Inspection, M.O.E.A., R.O.C. CNS Mark Certificate-Stainless Steel Tube For Machanical And Structural Purposes.
C.E. 2004
Bureau of Standards, Metrology and Inspection, M.O.E.A., R.O.C. CNS Mark Certificate-Light Gauge Stainless Steel Pipe For Ordinary Piping.