The advantage of this section is that it screws inside teeth, it would be riveting it to a higher degree of co-products. 1,Products DetailesMaterial1.Stainless Steel:SS201, SS303, SS304, SS316, SS410, SS4202,Steel:C45(K1045), C46(K1046),C203.Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200CuZn37), C28000(CuZn40)4.Bronze: C51000, C52100, C54400, etc5.Iron: 1213, 12L14,12156.Aluminum ...