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GB/T 16270-2009 Q690D High strength structural steel plates in the quenched and tempered co
GB/T 16270-2009 Q800E High strength structural steel plates in the quenched and tempered co
GB/T 16270-2009 Q800C High strength structural steel plates in the quenched and tempered co
GB/T 16270-2009 Q800D High strength structural steel plates in the quenched and tempered co
GB/T 16270-2009 Q690F High strength structural steel plates in the quenched and tempered co
GB/T 16270-2009 Q800F High strength structural steel plates in the quenched and tempered co
GB/T 16270-2009 Q890C High strength structural steel plates in the quenched and tempered co
GB/T 16270-2009 Q890D High strength structural steel plates in the quenched and tempered co
GB/T 16270-2009 Q890E High strength structural steel plates in the quenched and tempered co
GB/T 16270-2009 Q890F High strength structural steel plates in the quenched and tempered co
GB/T 16270-2009 Q690E High strength structural steel plates in the quenched and tempered condition Q690E Che
GB/T 16270-2009 Q460C High strength structural steel plates in the quenched and tempered condition
GB/T 16270-2009 Q460D High strength structural steel plates in the quenched and tempered condition
GB/T 16270-2009 Q460E High strength structural steel plates in the quenched and tempered condition