The buyer argued that the excavators delivered by the seller were not those contracted for, but were related to previous arrangements, since the Bill of Lading showed that they had been shipped in September 1994.
买方辩称，卖方交付的挖掘机并非合同规定的挖掘机，而与以前的安排有关，因为提货单显示运输时间是1994年9月。