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沥青混合料 、混凝土、水泥、砂石、钢筋、钢筋焊接、土工布、各种排水管等的检测 The municipal engineering inspection mainly includes two major items: geotechnical road engineering and municipal pipe network engineering, including geotechnical, graded crushed stone , asphalt mixture , concrete, cement, sand and stone, steel bars, steel bar welding, geotextiles, and various drainage pipes Detection