Is there a brick and mortar store in Kunshan that sells oxygen cylinders?

Yes, there are. For example, Kunshan Jiufeng Medical Equipment Co., Ltd. is located in Shazhou Industrial Park, Baimagang Street, Kunshan City, Suzhou City, China; at the same time, there is also a brick-and-mortar store specializing in the sale of oxygen cylinders in Kunshan called Kunshan Ruibo Medical Supplies Ltd. located at No. 788, Jinyi Lake Avenue, Kunshan City, Suzhou City, China. Kunshan, a county-level city under the jurisdiction of Jiangsu Province, is administered by Suzhou City and has been a county for more than 2,200 years since it was established in the Qin Dynasty.