Metal Fabrication & Installation Contractor 717-207-8985


An ASME Certified “U” Mark Pressure Vessel

Skilled and Certified

GSM Industrial’s steadfast commitment to excellence has helped us achieve a long list of industry-recognized certifications that span many areas of our business.

Code Certified Shop

GSM has designed and fabricated pressure vessels meeting ASME standards for over 30 years. Since December 2012, we can officially stamp the ASME Certification “U” Mark and National Board “R” Stamp to products if requested or required by the customer. This assures that design, fabrication, testing, and examination controls are performed using qualified procedures by qualified, certified personnel. GSM also has the ability to register code certified Manufacturer’s Data Reports with the National Board as required by many jurisdictions.

ASME Certification “U” Mark

This indicates that GSM’s design, fabrication, testing, examination and documentation for Pressure Vessels and/or Parts were completed in strict accordance with the requirements of the American Society of Mechanical Engineers’ Boiler and Pressure Vessel Code, ASME Section VIII (8) and IX (9) Division 1, U & R Stamp.

More About Our ASME Work

National Board “R” STAMP

This indicates that GSM has the ability to repair and/or alter pressure-retaining items constructed in accordance with the ASME Section VIII (8) and IX (9) Division 1, U & R Stamp or other original codes of construction in accordance with the National Board Inspection Code (NBIC).

Additional Certifications


GSM Industrial has an American Welding Society Certified Welding Inspector in-house
AWS Certified for D1.1 & D1.6
AWS Qualified for various types of materials and welding processes


Compliant with Canadian Welding Bureau Standards


Member of the American Institute of Steel Construction


Annual training for Mine Safety and Health Administration Part 46 & Part 48


Occupational Safety & Health Administration Outreach Trainer on-staff


Member of the PICS Consortium

State Licenses

GSM Industrial is fully licensed in PA, DE, MD, NJ, WV & VA