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About the quality ï¬ Made by high-speed punching lathe,Website:http://www.edwinpump.com, compared with normal stator/rotor, stability is improved by at least 50% ï¬ Coil with 100% copper wire, with thermal protector, make the pump stop working automatically at the condition of jam or over load etc. ï¬ We make 100% coil testing to...