主营产品：Special pipes and pipes for underground pipe corridors made of various plastics, metals, concrete, composites and other materials for water supply, drainage, oil transportation, gas transmission, heat, electricity, communications, etc.; pipe/duct manufacturing equipment, raw and auxiliary materials, anti-corrosion, thermal insulation, Rust removal, fireproof materials and pipeline repair technologies and products
主营产品：Japanese OKM valve, Japanese OKM butterfly valve, Japanese OKM electric butterfly valve, Japanese OKM pneumatic butterfly valve, Japanese OKM actuator
主营产品：Engaged in technical services in the field of industrial technology, sales of water pumps and valves (except for specialized controls), Wujinjiaodian, automation equipment, insulation materials, plastic products, fire-fighting equipment, and security equipment, and engaged in the import and export of goods and technology
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Japan HITACHI Japane
