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NB/T 47016-2011 English Version - NB/T 47016-2011 Mechanical Property Tests sa Product Welded Test Coupons alang sa Pressure Equipments (English Version): NB/T 47016-2011, NB 47016-2011, NBT-47016, NBT 2011 T47016-2011, NB/T 47016, NB/T47016, NB47016-2011, NB 47016, NB47016, NBT47016-2011, NBT 47016, NBT47016
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