CTCI Machinery Corporation

ISO Certificate

Certificate Issue Date
ISO-9001 : 2008 OHSAS 18001
ISO-14001 Nov, 2008


With these certificates we are permitted by ASME to used" U", "U2", "S", "PP" stamps on the boiler or pressure vessel manufactured by us.
Issue Date: U & U2 : Dec., 1983 ,
S & PP : Nov. ,1992,
N & NPT : Dec., 2007

National Board

With the "R" stamp, we are permitted by National Board to perform repair work on the ASME stamped boiler.
Issuer:National Board
Issue Date: Nov., 1992

PRC Manufacturing License of Boiler and Pressure Vessel

With this license, we are permitted by People's Republic of China to manufacture and import boiler and pressure vessel.
Issuer:General Administration of Quality Supervision, Inspection and Quarantine of PRC.
Issue Date: May, 1999


  1. ISO 14001
  2. OHSAS 18001
  3. ISO9001
  4. National Board "R"
  5. ASME "U" STAMP (R-3137)
  6. ASME "U2" STAMP (19,099)
  7. ASME "PP" STAMP (19,100)
  8. ASME "S?STAMP (26,711)
  9. ASME "N" STAMP (N-3253)
  10. ASME "NPT" STAMP (N-3254)
  11. People's Republic of China-Boiler A
  12. People's Republic of China-Pressure Vessel A1, A2
  13. Maker of Helixchanger and HELIFIN Heat Exchanger authorized by Lummus Technology Heat Transfe
  • ASME Stamps Authorization