Good though some minor lapses in word usage 

thanks! very good work. 

 

Good job! thanks! 

Everything else is good aside from the spelling of aluminum which is, you used the british one. Please check carefully next time since this is the primary kw. 

Thanks! 

 

Thanks! 

 

Thanks. Pay attention to the sentence 

Not according to instructions. 

Thanks for the great article 

Doest flow, the opening paragraph isnt good enough 

another excellent article! 

Well done! thanks! 

Good job! thanks! 

 

well done except for the kw usage. You did not use the primary kw as it is. Remember that this article is for SEO purpose which makes it the most important factor.If not for the well researched content I would have rejected this. 

thanks! very informative. 

 

 

Thanks! 

Another excellent article! thanks!