pp vs pu

[bulldozer_mivec]

what is the diff between PP and PU?
anyone can tell..........?

 

[netmatrix]

PP = en.wikipedia.org/wiki/Polypropylene

PU = en.wikipedia.org/wiki/PU

Please use the internet. No more spoon feeding. Ask the correct questions and you will get answers. Else a bashing/flaming will be in order.