Green Bio Bag Co., Ltd. is bag of chalk powder manufacturers and suppliers in China who can wholesale bag of chalk powder. We can provide professional service and better price for you. If you interested in bag of chalk powder products, please contact with us. Tips: Special needs, for example: OEM, ODM, customized according to demands, design and others, please email us and tell us detail needs. We follow the quality of rest assured that the price of conscience, dedicated service.