Technical specification for concrete structures with specially shaped columns 并列题名：Technical specification for concrete structures with specially shaped columns Technical specification for concrete structures prestressed with unbonded tendons Technical Specification for Concrete Structures of Tall Building Technical sqecification for strengthening concrete structures with grid rebar and mortat Technical srecification for concrete strutural element with cold-rolled and twisted bars Technical specification for construction of highway safety facilities 并列题名：Technical srecification for concrete strutural element with cold-rolled and twisted bars Technical specifications for construction of highway gas tunnel Technical specifications for construction of highway tunnel