I am thinking about buying some wholesale water pipes from this company in China
but I am not sure if they are legal to bring in to the states? What are the laws on water pipes, bongs, and pipes?

sorry dude, wrong forum. :( ide say this belongs in bltc ;)

The law states that:

Individuals can import and export bongs, pipes, and other drug related paraphenalia so long as they post their questions in the correct forum. Failure to do so will result in immediate arrest and execution... Okay not execution but we'll give you a stern talking to young man.

It's not looking good man.