Single drum rollers 2018 2,000 h China
Single drum rollers 2016 3,500 h China
Single drum rollers 1999 4,050 h Poland, Rakoniewice, wielkopolskie
Single drum rollers 2019 2,011 h China, Hefei
Single drum rollers 2024 United Kingdom
Single drum rollers 2021 2,100 h China
Single drum rollers 2022 800 h China, Hefei
Single drum rollers 2018 China