Hellow we are Russians need to go to China to sign the contract. Have the letter

Dear Mr Ermolenko Serguei and Mrs Ermolenko Svetlana!
We ask you urgently to come to our company (company name) for inspection of product samples and the signing of the contract. Urgent visit is required to produce your order in time according to the plan schedule.
Time travel is necessary to perform all activities of at least 10 days.

Is this letter ok to get visa in Guandzhou airport?
Or now?
Many thanks befor