Which brand of wheelchair is better quality? Where to sell in Hangzhou?

On the opposite side of the Shaw Hospital east a little, there is a sale of medical equipment, their wheelchairs are the most complete, there are German Ottobock, Japan's three expensive, Nissin's, Shanghai Hubang, Fontainebleau, Taiwan Kang Yang, etc., I bought a Kang Yang wheelchair from that, with a pretty good, but listen to them said the German Ottobock wheelchair is the best, commonly known as wheelchairs in the " Mercedes-Benz ", my old man with a long time, I did not buy so good, it is recommended that you go there to buy. Mercedes-Benz", my old man with a long time, did not buy so good, it is recommended that you go there to buy, one thing is the quality of things after-sales guarantee, and then there is their service is particularly good, inconvenient can also be delivered to the home, I have their contact information, you can call to consult the following: eight six ⑦0 period of the land 〇 ②