We quote the threaded rubber expansion joints DN50 for 20 pieces on 23th Mar. and the freight by express separate quoted. The customer reply us, our total price is very high(included the freight by express), he buy the joints from local importer (his price is 2 times of our unit price). Then we explain that the total weight is heavy, so the freight by express is high; if the customer need delivery the goods by sea next time, our price is very competitive and we will give you some discount if have the specific quantity. Today the customer need the price of 150 pieces rubber expansion joint by sea, we quoted it included the data sheet, catalogue, photo. Looking forward to cooperate with this customer.