Granite Pavers required to supply in United Kingdom

We are looking for a factory to supply us with Granite blocks / pavers, kerb stones .
So far we have been quoted $13.00m2 from a company in China ,
for the following -So far we have been quoted $13.00m2 FOB for the following-
50mm x 150mmx 50mm top surface flamed and all sides sawn 2250mm x 150mm x 50mm top surface flamed and all sides sawn
350mm x 150mm x 50mm top surface flamed and all sides sawn.