... 4.insulation class B ZHEJIANG JUSEN MECHANICAL AND ELECTRICAL CO.,LTD is profession manufactory for kinds of ... pumps, control equipments, which is established in 1987, with total over 20,000m2 area, more ... scientific research, designing, manufacturing. Our company is located in "Chinese Water Pump Hometown" Daxi Shanshi industry area ... approved by ISO9001, and ISO2000. y2 series electrical motor