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ISO9001:2000 light steel structure bridge
steel structure bridge *easy and fast erection *engineer can be sent to work site *save energy/environmental *low cost feature1.high strength and big stiffness , relative to the concrete bridge can be reduced trabecular high and self-respect 2.Due to the steel isotropic, quality of a material is uniform and modulus of elasticity, that make steel bridge in the working condition and calculation ...
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