Environmental zinc interlocking balance wheel: 1,Material:Hardened metals 2,Processing :stamping,broaching 3.OEM customize Environmental zinc interlocking balance wheelItem name:balance wheelCompany Profile:With advanced equipment size range from 5T, 35T, 63T,108T,200T,315T to 630T punching machines, totally 20 sets.We can provide in-house design, tool manufacturing, stamping and forging, ...