You can be the one to create the needed database and then export it here. In the US, the online information about Weyermann is limited to color and usage percentage, leaving us to guess at the rest. Not the best way to create a database.
A phone call or two to any small brewery in your area should yield the name of the importer. In turn, they should have access to malt lot reports, which will have all the details to create a good database of their malts.
If you have trouble translating the tech sheets for the database, you can PM me.