Topic : สอบถามเคมี
จากคุณ  :  Mr.A-nano   [ 3/30/2009 1:37:22 PM]
อยากทราบว่าเคมีชื่อ Isobutane Cas No 75-28-5 เป็นวัตถุอันตรายหรือไม่ครับ เช็คดูจากกรมแล้วไม่พบครับ
จึงอยากทราบครับ

จากคุณ : ppst    [22/7/2560 11:15:04]

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