(AIR COM SEP)Īalberts Integrated Piping Systems Americas, Inc.ĪBJ Engineering & Contracting Co. (AIR COM CSV)Ī.S.T.R.A Refrigeranti S.r.l. (AIR COM CSC)Ī.S.T.R.A Refrigeranti S.r.l. A Subsidiary of Mercer Valve Co., Inc.ģB General Trading & Contracting Company W.L.L.Ī.S.T.R.A Refrigeranti S.r.l. 'Machine-Building Factory of Podolsk' JSCġ138444 B.C. If you do not have this information we suggest you leave this field empty. Many timesĪ plant may have a different physical location than the city it is commonly associated Know the exact city for the company or plant you are trying to locate.Typing in only the first letter or two in the company's name, or simply leave theĬompany name field empty to ensure you receive all possible matches. A company may spell its nameĭifferently on their certificate than how they are known to the public. Be as general as possible if entering a company name.Please note: if a company does not meet at least one of these four criteria, it will not be listed in this directory. Pressure relief valve testing organizations holding an active National Board Certificate of Authorization for use of the T/O Certification Mark.Repair organizations holding an active National Board Certificates of Authorization for use of either the R, VR, or NR stamps and/or.Active Manufacturers or Assemblers of pressure relief devices who have these items currently capacity certified by the National Board.Manufacturers of boilers, pressure vessels, or other pressure-retaining items holding an active Certificate of Authorization to Register with the National Board.

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