SIZE: M:M5-M20;L:10-500 M:1/4-3/4,L:1-24   Finished: zinc plated(cr3+,cr6+),black treatment, hot dipped galvanization(HDG),nickel plated, chrome plated or stainless steel etc .Also produce non-standard pieces according to your drawings or samples.Material:Stainless steel,Carbon steel, 40cr,Q195,1008,  Good product performance.Various packings are available:bulk,small boxes,polybag and so on