0.8ร1ร1.2ร1.5ร1.7ร2ร2.5ร15 minโก๏ธ19 min15 min13 min10 min9 min 1 sec7 min 40 sec6 min 8 secIntroduction0.8ร1ร1.2ร1.5ร1.7ร2ร2.5ร15 minโก๏ธ19 min15 min13 min10 min9 min 1 sec7 min 40 sec6 min 8 secIntroductionYour user agent does not support the HTML5 Video element.