0.8ร1ร1.2ร1.5ร1.7ร2ร2.5ร11 minโก๏ธ13 min11 min8 min 46 sec7 min6 min 11 sec5 min 15 sec4 min 12 secIntroduction0.8ร1ร1.2ร1.5ร1.7ร2ร2.5ร11 minโก๏ธ13 min11 min8 min 46 sec7 min6 min 11 sec5 min 15 sec4 min 12 secIntroductionYour user agent does not support the HTML5 Video element.