... bronze 3)Standard:GB,DIN,BS,ISO,ANSI(IFI) Brass Boltsstandard :GB,DIN,BS,ASTM,ISO,ANSI(IFI),JIS, ... ,1/8-3''length:5mm-250mm,1/4''--10''material: brass, copper, bronze, aluminium bronze, nickel bronze,, phosphor bronze, ... certificationOur products are widely used in aerospace, automobiles, motorcycles,agricultural machinery, construction, transportation, electric power,electronics, chemicals, and home ...