... 2), Exquisite surface; 3), Steady structure; 4), Low cost, high benefit. 1), Comply with GB, ASTM,....ISO9000;2), Exquisite surface; ... 3), Steady structure;4), Low cost, high benefit. ... )9), Good market reputation for all kinds of steel structure buildling. Steel Structure Warehouse of Hempel (China) International Co., Ltd.