ISO 3834, WPS, PQR and WPQ Explained for Buyers
When sourcing welding and fabrication services, buyers are often presented with terms such as ISO 3834, WPS, PQR and WPQ. For those outside of day-to-day welding operations, these likely don’t make much sense! These letters refer to documents and standards that exist for a very practical reason: to ensure that welding is carried out in a controlled, repeatable, and compliant way
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