The following channels can be considered when purchasing diving equipment in Chenggong, Kunming:

1. Professional diving shop: Look for a professional diving shop around Kunming or Chenggong, and generally provide sales and rental services of various diving equipment. You can consult them about buying diving equipment and choose products that suit your needs.

2. Online shopping platform: You can search and buy diving equipment through online shopping platforms such as Taobao, JD.COM and Amazon. On these platforms, you can find various brands and models of diving equipment, and understand the quality and performance of products through user evaluation.

3. Diving clubs or societies: Join local diving clubs or societies to communicate with diving enthusiasts. They will have some second-hand or idle diving equipment for sale. In this way, you can not only buy more economical equipment, but also get advice and guidance from experienced diving enthusiasts.