... the-art technology introduced from developed coun 1,General Description1215a/2,1218a/2,1222a/2 and 1228a/2 three-phase asychronous water submersible motors ... These motors are filled with water,chiefly used to directly drive deep well pumps in 6’’,8’’,10’’12’’casings in ... These motors are perfect in design and simple in construction with the features of low-noice,energy efficient,excellent performance ...