然而，之后双方因厂房出售范围、付款方式等主要合同条款未能形成一致意见，导致房屋买卖合同迟迟未能签订。
However, both parties failed to reach an agreement on the main items in the contract including the scope of the sale of the plant and method of payment, and as a result, they were delaying the signing of the plant purchase and sale contract.