... :C36000(C26800),C37700(HPb59),C3850(HPb58),C27200CuZn37),C28000(CuZn40),etc. 4.Bronze:C51000,C52100,C54400,etc. 5.Iron:1213,12L14,1215 ... special standard according to the drawing.GradeClass 4.8, Class 6.8, Class 8.8, Class 10.9, Class 12.9,etc.Surface finishingPlain,polishing ... the goods reach the best quality as the customers require. 4. Packing show...First,We usually pack the goods in small ...