LONGSPER INSULATION TECHNOLOGY(TIAN JIN)CO., LTD which has developed activites in the field of insulating material founded in 2004 in Tianjin - one of the most important ports in China , concentrating on the transformers and motors insulating material exclusively. With great foreign trade capability and technical force, our corporation has been specialized in handling the import and export all over the world. Until now, we have spread our business successfully with hundreds of categories up to more than 100 countries and regions throughout the *****