HIi Dev,
Hi
Yes it is possible. You need to have vendor subrange. Every subrange for a vendor can have different purchase details. You can have vendor subrange at vendormaster purchase organization additional data. For more information see the below link
http://help.sap.com/erp2005_ehp_04/helpdata/EN/e2/f3333956bd9f05e10000000a11402f/content.htm
Thanks,
Gurtej