In the enterprise statement, the financial personnel of the other party sign and affix the special contract form, which has legal effect. The official seal of the other company and the consignee's signature on the receipt confirmation form are the civil legal acts of the other company to acknowledge the receipt of the goods, which can be used as direct and effective evidence to recover the payment. Article 10 The parties may conclude a contract in writing, orally or in other forms. If laws and administrative regulations stipulate that it should be in writing, it should be in writing. If the parties agree to use written form, it shall be in written form.