Pumpjack
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  Subject Replies Date
What material use in each component in pump-jacks oilfeild 0 12/23/2013
1)Explain about the support reaction in pump-jack and represent it in the form of free body diagram? 2)Analyze the various forces acting on the m... 2 12/17/2013
how i can make a sampl or project of Pumpjacks??? 1 11/15/2012
 
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OK