{
  "product_id": "JL-0194",
  "source_model": null,
  "title": "美标、日标止回阀",
  "category_path": [
    "手动阀门",
    "止回阀"
  ],
  "description": "美标、日标止回阀。公开规格：设计与制造：API6D、BS 1868、ASME B16.34；结构长度：ASME B16.10、API 6D；法兰连接尺寸：ASME B16.5 、ASME B16.25 、ASME B16.47；检验和测试：ISO 5208、API 598、BS 6755。",
  "specifications": [
    [
      "设计与制造",
      "API6D、BS 1868、ASME B16.34"
    ],
    [
      "结构长度",
      "ASME B16.10、API 6D"
    ],
    [
      "法兰连接尺寸",
      "ASME B16.5 、ASME B16.25 、ASME B16.47"
    ],
    [
      "检验和测试",
      "ISO 5208、API 598、BS 6755"
    ]
  ],
  "drawing_status": "missing_source_dimensions",
  "drawing_status_label": "待补资料",
  "dimension_gap_reason": "产品页面未提供外形尺寸图或可提取尺寸表；关联资料未发现可可靠套用到此配置的完整尺寸依据。",
  "source_url": "https://www.juliang.cn/products/manual-valve/check/194.html",
  "source_date": "2026-10-23",
  "dimension_notice": "尺寸重绘资料仅供选型参考，实际配置与安装尺寸需技术确认。",
  "main_image": "/static/uploads/juliang_20261026/assets/manual-valves/manual-valves-04fe48c8/JL-0194/main.png",
  "drawings": []
}