CHANGZHOU LANGYAN TRADING CO,LTD Established in 2018.We are located in changzhou city,jiangsu province.We have our own factory-Changzhou JiaBo Machinery Manfacturing Co.,Ltd.We are is a professional manufacturer engaged in the research, development, production, sale and service of electric bike hub motor,electric bike middle motor and electric bike torque senor. We also export electric bike conversion kit,electric bike,electric scooter.Our company covers an area of 15,000 square and has around 100 staff members.Furthermore, all our products are manufactured with advanced equipment and strict QC procedures in order to ensure high quality.In addition, we have attained CE,ROHS AND SGS certificates.Selling well in all cities and provinces around China, our products are also exported to clients globally.We also welcome OEM and ODM orders.We warmly welcome customers and abroad to establish cooperation and create a bright future together with us.CHOOSE CZJB,ENJOY A BETTER LIFE.