the new sand table system will be deducted for extending the loan. According to the relevant information, the long-term loan on the sand table will affect the credit score. The long-term loan can be extended before the first quarter of each year. The amount of the long-term loan is three to four times the equity, the longest time is four or five years, and the interest rate is 1% (rounded off). Sand table has the characteristics of strong three-dimensional sense, intuitive image, simple production, economy and practicality.