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			Written by pimpitcha		
		  
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		Sunday, 09 March 2014 18:16	 | 
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In this video discusses laboratory guidelines, safety and equipment. Lab safety is a must and you need to use proper names for the equipment. 
  
ที่มา :  http://www.yourCHEMcoach.com 
ลิงค์ :  http://youtu.be/7Fo_sme1WuM 
อัพโหลดโดย : mrcausey 
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		Last Updated on Monday, 10 March 2014 11:12	 |