few company also can send from china to fba usa，price depend on warehouse location

This company can help
http://www.go2uti.com

you have several things to work out before this becomes a factor.

Some would include the following.

Who is your customs broker who will handle storage and inspections?

Who does your broker recommend for a shipping partner?

Who is labeling your products for FBA unless you are commingling.

Are you aware of potential inspection and handling costs?

I suggest you search for Import Groups on Facebook for more detailed assistance.

think you have to have a broker to handle these large shipments.

I suspect 42 pallets would be a full cargo container.

This is likely to be subjected to a full inspection as you are not a “trusted importer” with a track record in compliance.

This can cost thousands, so advance knowledge is important.

Here is a link to a behind the scenes peak at import inspections from a broker with a long history.

I do not import and therefore have no direct experience nor any relationship with this source, but it is a good read.

http://www.shapiro.com/examining-the-issue/