Anyone know a company that the supply of PVC pellets …?

I have a new company established PVC doors and windows, and I'm looking for great amounts of PVC granules of different colors to k67/68 extrusion lines. And I appreciate any suggestions on companies that provide this material.

http://smallboss.en.alibaba.com/product/50229393/51186783/Plastic_profile/PVC_Granules.html?src=rss