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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