Joined: 06/09/2012

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tuyen's PowerPoint Presentations

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Recent Activity

tuyenbt commented on Valentina's presentation "msds "

101 months ago

Comment (24)

tuyenbt : thank about your presention. that good! hope you can train much information.

101 months ago

ashfaqdte : nice

98 months ago

mohamedabdelhame41144 : very useful

94 months ago

TwoHerbs : Can I download your laser safety ppt, we are starting a new laser safety program and your presentation would be useful. Thanks

60 months ago

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