... ASTM... ISO9000; 2), Exquisite surface; 3), Steady structure; 4), Low cost, high benefit. 1), Comply with ... Exquisite surface;3), Steady structure;4), Low cost, high benefit.5), Excellent design team6), Strict quality control ... design available (design and produce under customer's requirements)9), Good market reputation for all kinds of steel structure buildling. Prefabricated Steel Structure warehouse ...