Figure 1 is the positioning cylinder of the keyway symmetry integrated plug gauge, material Cr12, heat treatment hardness HRC60～64, the symmetry tolerance of the keyway to the axis is 0.005mm, which is only equivalent to 1/10 of the measured element, and the precision requirement is relatively high. Processing is also difficult. According to the practice, this paper introduces the main process methods as follows, for reference only.
Wedge Anchor,Marble Undercut Anchor,Stainless Steel Anchor Bolts,Sleeve Anchors
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