You should be looking to buy replacements parts for your iPhone but you don’t want any third person getting involved in the selling of these parts. This is because the best way is to buy directly from the manufacturer. But to buy directly from manufacturer you need to buy large quantities so that you will never get rid of them. All the stuff is made in Asia.
You can buy the replacement parts online. Buying the parts directly from the manufacturer requires that you would need to buy by bulk and may need a lot of capital. Even most of the parts come from China. You can also check it at www.iPhonestoreonline.com. For buying iPhone replacement parts you can also look at www.ebsilk.com which is from China and they do not find the right items in their website you just specify about the parts and they will try their best to satisfy you by providing best replacement parts. So it would be best to purchase the iPhone replacement parts directly from any manufacturer instead of buying it from different middle men.