Hangzhou Longer Industry Co.,Ltd is a subordinate company of Zhejiang Dawn Group. Founded in 2009, Trading department specializes in foreign trade, covering products of CNG conversion kits, lithium batteries, standby power, steel pipe and furniture, mainly exported to Europe, America, Southeast Asia, Middle east and Africa. Weâve build good business relationship with many countries in those areas.With a lively innovative professional selling group and our own factories,we can design and produce according to your requests. Nowadays,New energy will be the trend as the low carbon economy and high cost of petrol. We are striving for the research and development of new energy. Our featured products are CNG conversion kits and lithium batteries which are environment-friendly and energy conservation.