GB/T 33550-2017旋涡式自吸电泵性能评价规范国家标准
英文:Vortical self-priming motor-pumps—Specification for performance evaluation GB/T 33550-2017介绍: 国家标准《旋涡式自吸电泵 性能评价规范》由TC...
英文:Vortical self-priming motor-pumps—Specification for performance evaluation GB/T 33550-2017介绍: 国家标准《旋涡式自吸电泵 性能评价规范》由TC...