Sine Wave Inverter

Dear sir
we are company called Torwada,we supply electrical products for customer
and we do electrical contract,fire protection system,generators
maintenence
our company location in Republic of yemen,sana'a capital
we are very interesting with your products inverters from 1000VA to 3000VA .
and we are looking for another type of inverters that can charge from both
sources (electrical network and solar system) please let me know about
this type also.
can you provide us a quotation and