It is believed diving gear is a very small portion in each of these classifications. So, accuracy is difficult to obtain. In many cases diving gear is distributed directly from manufacturers to retailers, except for those manufacturers who have their own sales subsidiaries. Diving gear is usually non-returnable. Along with selling equipment, many professional diving shops offer a variety of services including schools and training courses, sales promotion for C card issuing institutes, and tours.
Some manufactures actually manage C card institutes and schools.
Ltd. Each of these importers handle a single brand. Other importers like A.P. Systems Inc. and FL Corp . handle a number of brands. There are many diving spots in popular resort areas such as Okinawa and the Izu Peninsula. Diving-related service companies there manage diving shops and provide guides, boats, diving gear sales and rentals, and air recharging. Some Japanese manufacturers have actively targeted the middle aged group in the hope of expanding this market.