at the economy office building of the headquarter of the high-tech development zone in Jinghai Count, Tianjin, Tianjin
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Square-rectangular steel pipes are widely applied in machinery
making, building, car industry, railways, furniture, decoration
and other industries.
Steel pipe used for conveying fluid and solid, not only to
exchange heat, manufacturing machinery parts and container, it is
also a kind of economic steel. With steel pipe manufacturing
space truss structures, pillar and mechanical support, can reduce
light weight, saving metal *0 ~ *0%, and can realize the
mechanization of factory construction. With steel pipe
manufacturing highway Bridges not only can save steel, simplify
construction, and can greatly reduce the area of the coating
layer, save investment and maintenance costs.
