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Seamless and welded (except submerged arc-welded) steel tubes for pressure purposes - Ultrasonic testing for the detection of laminar imperfections
Translate name
STANDARD published on 12.9.2006
Designation standards: GB/T 20490-2006
Note: WITHDRAWN
Publication date standards: 12.9.2006
SKU: NS-874568
Country: Chinese technical standard
Category: Technical standards GB
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