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首页 › 标准目录 › NAICS 2022 › 54 · Professional, Scientific, and Technical Services › 541 · Professional, Scientific, and Technical Services › 5413 · Architectural, Engineering, and Related Services › 54138 · Testing Laboratories and Services
NAICS 2022 US 北美行业
54138

Testing Laboratories and Services

See industry description for 541380.

1
国家行业
直属分类 · 1 项
541380
Testing Laboratories and Services
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同级分类
54131 Architectural Services 54132 Landscape Architectural Services 54133 Engineering Services 54134 Drafting Services 54135 Building Inspection Services 54136 Geophysical Surveying and Mapping Services 54137 Surveying and Mapping (except Geophysical) Services 54138 Testing Laboratories and Services
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