1215, 1218, 1222, 1228,1234 submersible motors. ritz standard, 316ss We have our ... QM 6'', 8'', 10'' and 12'' water cooling submersible electric pumps at NEMA standard, operating in 50Hz and 60Hz ... 300Hp, and 1215, 1218, 1222, 1228,1234 RITZ submersible motors. We are among a few group of Chinese suppliers ... 2009, we got ISO9001 International Standardization Certification. ritz submersible motor pump