China National Standards

China Precast post tensioned GB Standards List

  •  China "Precast post tensioned" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 37439-2019 Precast post-tensioned prestressed concrete simply-supported beam of high-speed railway
    高速铁路预制后张法预应力混凝土简支梁    		 China National Standards
    Precast post tensioned
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