CHANGZHOU LANGYAN TRADING COLTD 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 motorelectric bike middle motor and electric bike torque senor. We also export electric bike conversion kit,electric bikeelectric scooter.,brOur 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 CEROHS AND SGS certificates.,brSelling well in all cities and provinces around China> our products are also exported to clients globally.We also welcome OEM and ODM orders.br