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API Std 20G
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API Std 20G Welding Services for Equipment Used in the Petroleum and Natural Gas Industry, First Edition
standard by American Petroleum Institute, 01/01/2020
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Full Description
This standard specifies requirements for the qualification of suppliers of welding services used in the manufacturer of equipment for the petroleum and natural gas industry.The requirements of this standard apply to welding operations performed in a welding facility or in the field. Included are pressure-containing, pressure-controlling, overlay, and structural welds.