1), Comply with GB, ASTM... ISO9000; 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 ... design team6), Strict quality control 7), Manufacture according to the international standard8), Custom design available (design and produce under customer's ...