0.8ร1ร1.2ร1.5ร1.7ร2ร2.5ร11 minโก๏ธ14 min11 min9 min 4 sec7 min 15 sec6 min 24 sec5 min 26 sec4 min 21 secIntroduction0.8ร1ร1.2ร1.5ร1.7ร2ร2.5ร11 minโก๏ธ14 min11 min9 min 4 sec7 min 15 sec6 min 24 sec5 min 26 sec4 min 21 secIntroductionYour user agent does not support the HTML5 Video element.