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See Chinese contents: GB/T 25409-2010 GB/T 25409-2010: Small-size submersible motor-pumps
This Standard specifies the type, model, basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage, etc. of small-size submersible motor-pumps. This Standard applies to single-phase or three-phase, single-stage or multistage small-size submersible motor-pumps with a power of 22 kW or less.
