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Welding procedure qualification for pressure equipment
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This standard specifies the welding process assessment of butt welds and fillet welds, corrosion-resistant surfacing welding proce
1970-01-01 category：Energy Standard(NB)+ View
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GB 9133-1995 Classification of radioactive waste
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This standard specifies guidelines for the classification and grading of radioactive waste. This standard applies to all radioacti
1970-01-01 category：Energy Standard(NB)+ View
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