... ISO,GB,DIN,JIS 4.ISO9001-2008,SGS,ROHS bronze screws 1.Surface Finish: annealing, natural anodization, heat ... commit ourself to smile to each customer1)Details: Product name bronze screws Material 3.Brass:C36000 ( C26800), C37700 ( ... HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)4.Bronze: C51000, C52100, C54400, etc SpecificationM3-M36ColorOrangeStandardISO,GB,DIN,JIS,ANSICetificateISO9001 ...