... 3.Popular product,high quality. Hot Sale Pressure FH FHS FHA Riveting Self Cinching Screws 1.Product Specification ... C37700(HPb59),C3850(HPb58),C27200CuZn37),C28000(CuZn40),etc. 4.Bronze:C51000,C52100,C54400,etc. 5.Iron:1213 ... and special standard according to the drawing.GradeClass 4.8, Class 6.8, Class 8.8, ... reach the best quality as the customers require. 4. Packing show...First,We usually pack the ...