The main standards of product are ANIS,DIN,BS and ISO. Diameter of the inch products is 1/4"-1"with tensile strength Gr2-Gr8,and M6-M30 for the metric products including the tensile strength Gr4.8-Gr10.9.Surface treatment products are including black,zinc plated,hot dip galvanized,phosphated Ect.The products are mainly for machinery manufacturing,projects maintaining,construction,bridge,and Auto industry