Long Chen / Profile Long Chen China 468 Information 5+ years experience 2 products 199 demo versions 0 jobs 1 signals 0 subscribers January February March April May June July August September October November December 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 :