Hellow guys, Welcome to my website, and you are watching EN71/ISO8124 New Toys Kinetic Energy Tester--Projectile Velocity Tester--Touch screen control. and this vIdeo is uploaded by Dongguan Hust Tony Instruments Co.,Ltd at 2020-12-16T23:04:17-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
