Where can I buy an oxygen bag in gaomi city?

Gaomi city Bright Oxygen Co., Ltd. Shandong gaomi city purchased oxygen bags from gaomi city Bright Oxygen Co., Ltd. located in Cuijia Village, Liquan Street, gaomi city, Weifang City, Shandong Province. The oxygen bag is convenient to carry and simple to operate, and can be used for emergency transportation in family health care and medical units.