Strojirny Trinec, Tsjechie, www.strojirnytrinec.cz
  
  The Stroijirny Trinec company, which means “Machine factory” in the Czech language, is located in the 
  city Trinec. I examined the certification of a number of welding procedures and welders qualifications in 
       Welding Procedure Qualification Records
  base-material group II. The qualifications are performed under the authorization of DNV Certification BV. 
  Barendrecht in The Netherlands. LAB Verduyn BV. has an agreement for the examination of these                 Welding Performance Qualifications
  procedures and welders
  qualifications (see
 certification (PDF, Dutch).
  
  
  
  
  
  
  
   www.dnv.nl