{
  "source": "01_紧固件/0105_挡圈卡环/010599_通用挡圈/镜向CQ2A50-75DM_CQ2 SnapRing(50).solidworks_evidence_v2.json",
  "part_id": "CQ2A50-75DM_CQ2-SnapRing-50",
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    "counts": {
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    "feature_contracts": [
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          "mirror source features/faces are missing"
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    "surface_counts": {
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        "solid_count": {
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      },
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  },
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}