... :ISO,GB,DIN,JIS 4.ISO9001-2008,SGS,ROHS bronze screws 1.Surface Finish: annealing, natural anodization, heat treatment, ... , satin, etc.2.Processing Method: cnc machining, turning, milling, drilling, grinding, broaching, welding and assembly.3.Variety of standards:ISO ... ourself to smile to each customer1)Details: Product name bronze screws Material 3.Brass:C36000 ( C26800), C37700 ( HPb59), C38500( ...