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Invention patent and utility model patent
Invention patent and utility model patent
Invention patent and utility model patent
Invention patent and utility model patent
Scientific and technological achievements appraisal certificate
Zhejiang Province Industrial New Product Appraisal Certificate
Zhejiang Province Industrial New Product Appraisal Certificate
Guidelines for ordering and acceptance of power plant temperature and pressure reducing devices
Technical standards for high temperature and high pressure globe valve gate valve in power station
Technical standard for valves for coal chemical plant
Standard for steel flat gate valve for pipeline
LNG valve performance test standard
Technical standard for LNG valves
Valve Modeling Method Standard
General requirements for thermal power supercritical and ultra-supercritical parameter valves
Standard for ordering and acceptance of steel general purpose valves for thermal power generation