Rail Rod

SAW WPS

Super Oot

Sample CWI Attendency (New 2015 - Duy Design)

Technical Handbook 2011

AWS D3.6M-2010 Under water welding code.pdf

Al 5052 - PQR

Guide to Brazing and Soldering

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En ISO 5817 - Quality Levels for Imperfections

Iiw Annual Report 2012

NSRP-LLM-PQR-012L.pdf

Jis g3141 Spcc

AWS- 05052014 - Proposed for AWS - CWITraining Course (at CTWEL)

Welded Refinery Equipment