Qingdao Hongjiyuan Metal Products Co., Ltd started as a factory to manufacture steel springs from year 2010. With several years experience on springs, it started to produce complete trampolines from year 2014. After introduced new technology of trampolines, HJ-yuan has studied a new set of trampolines which compromises entertainment, body fitness and parental education and earned good reputation from the customers.
HJ-yuan trampolines has been more and more popular due to below factors.
1. Great quality, best after-sale service, and compative cost.
2. Sound security for kids and adults.
3. Improved the simplicity of the trampolines’ play methods.
4. Break the limitation of play time.
5. Broaden the diversity of amusement projects.
HJ-yuan trampolines are always put the customers’ requirements on the first place, keep improving the quality and innovating our products , promote our service to satisfy every customer. Choose HJ-yuan, choose fun and fitness.