Single drum rollers 1996 United States, Baltimore, Maryland
Single drum rollers 2019 1,811 h China, Hefei
Single drum rollers 2018 464 h United States, Womelsdorf, Pennsylvania
Single drum rollers 2018 China
Single drum rollers 2022 1,800 h China, Hefei
Single drum rollers 2019 2,011 h China, Hefei
Single drum rollers 2017 China
Single drum rollers 2021 1,000 h China, Fengxian District, 上海7d
Single drum rollers 2021 1,324 h China7d
Single drum rollers 2021 600 h China
Single drum rollers 2021 1,000 h China7d
Single drum rollers 2016 2,500 h China7d
Single drum rollers 2018 2,000 h China
Single drum rollers 2022 800 h China, Hefei
Single drum rollers 2019 1,500 h China
Single drum rollers 2019 1,100 h China
Single drum rollers 2018 1,950 h China
Single drum rollers 2022 China
Single drum rollers 2019 2,100 h China
Single drum rollers 2017 3,300 h China