... , bronze 3)Standard:GB,DIN,BS,ISO,ANSI(IFI) Brass Boltsstandard :GB,DIN,BS,ASTM,ISO,ANSI(IFI),JIS, and ... -250mm,1/4''--10''material: brass, copper, bronze, aluminium bronze, nickel bronze,, phosphor bronze, manganese bronze,etc.finish: nickel,chrome,zinc,silver,gold plated or ...