Standard: DIN, GB, ASME, ANSI, Non-standard Material: Mild steel,Carbon steel, Stainless steel,brass,copper Features:1)Standard: DIN125,GB95,96,97,ASME B18.22.1,BS,JIS B 1256,Non-standard2)Material: Mild steel,Carbon steel, stainless steel(A2,A4),brass,copper3)Metric size: from M2 to M644) Surface finish:Plain,painting,Zinc-plated, Nickel, Phosphate black,HDG,dacromet,etc5) Packing: Standard ...