What are the well-known water park equipment manufacturers?

Lu Qin, Dalang and Liu Chao are well-known water park equipment manufacturers in China, but they all have their own characteristics. Among them, Lu Qin Amusement is famous for its design and service, and has become a dark horse in the industry. The quality of water park equipment is almost the same, and they are all manufacturers with double certificates of special equipment. 80% of the water park equipment manufacturers are in Guangzhou, so if you have the opportunity, you can go on a field trip. I don't remember the rest of the names.