| Lin, Xubin, Chinese Design No. 305154466, published at Orbit, publication date May 10, 2019. Site visited Jan. 11, 2022. Available from Internet. (Year: 2019). |
| Sui, Chengda et al., Chinese Design No. 303661950, published at Orbit, publication date May 4, 2016. Site visited Jan. 11, 2022. Available from Internet. (Year: 2016). |
| Liu, Xiaorong et al., Chinese Design No. 305148214, published at Orbit, publication date May 7, 2019. Site visited Jan. 11, 2022. Available from Internet. (Year: 2019). |
| Gao, Yang, Chinese Design No. 305280902, published at Orbit, publication date Jul. 30, 2019. Site visited Jan. 11, 2022. Available from Internet. (Year: 2019). |
| Lin, Xubin, Chinese Design No. 305017717, published at Orbit, publication date Jan. 29, 2019. Site visited Jan. 11, 2022. Available from Internet. (Year: 2019). |
| Liu, Yong, Chinese Design No. 305307581, published at Orbit, publication date Aug. 16, 2019. Site visited Jan. 11, 2022. Available from Internet. (Year: 2019). |
| Bai, Yang, Chinese Design No. 303551340, published at Orbit, publication date Jan. 13, 2016 . Site visited Jan. 11, 2022. Available from Internet. (Year: 2016). |
| Wu, Danxia, Chinese Design No. 305154633, published at Orbit, publication date May 10, 2019. Site visited Jan. 11, 2022. Available from Internet. (Year: 2019). |
| Li, Luyao, Chinese Design No. 305066357, published at Orbit, publication date Mar. 15, 2019. Site visited Jan. 11, 2022. Available from Internet. (Year: 2019). |